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NJM2527
COLOR TFT SIGNAL PROCESSOR
s GENERAL DESCRIPTION The NJM2527 is a color TFT signal processor. It contains all function, like as Y/C separator circuit, color signal de-modulator, synchronous separate circuit, RGB interface, and sideblack control circuit, required by color TFT signal processing. The NJM2527 keeps selecting NTSC/PAL with external VCXO circuit TRAP circuit for each broadcasting. s PACKAGE OUTLINE
NJM2527FR2
s FEATURES q NTSC/PAL matching (Resemblance PAL de-modulation system) q Internal Y/C separate circuit q Input mode: Composite video signal, Y/C separate signal, External RGB signal q Internal synchronous separate circuit (Liquid crystal panel PLL use) q Internal black level insertion circuit (Use for aspect ratio change) q Internal Gamma 2-point correction circuit q Bipolar technology q Package Outline QFP48-R2
s BLOCK DIAGRAM
SIDEBLACK SUBVG2B SUBVG2R SUBVG1B SUBVG1R BRIGHT ROUT RDET EXTINR VCC2
s PIN CONFIGURATION
1 . GDET 2 . GOUT 3 . BDET 4 . BOUT 5 . FRP 6 . GND1 7 . SW 8 . YCLAMP 9 . HSYIN 10.SYNCOUT 11.SYNCIN 12.REGOUT 13.CIN 14.ACCDET 15.FADJ 16.KILLER 17.CLEANING 18.IDENT 19.TINT 20.COLOR 21.PALPHASE 22.VCXOIN(NTSC) 23.VCXOOUT(NTSC) 24.APC 25.VCXOIN(PAL) 26.VCXOOUT(PAL) 27.PICTURE 28.VIDEOIN 29.TRAP 30.VCC1 31.CONTRAST 32.GACLAMPB 33. EXTINB 34. GACLAMPG 35. EXTING 36. GACLAMPR 37.EXTINR 38. VG1 39. VG2 40. SUBVG1R 41. SUBVG1B 42. SUBVG2R 43. SUBVG2B 44. SIDEBLACK 45. BRIGHT 46.VCC2 47. RDET 48. ROUT
VG2 VG1
38
48
47
46
45
44
43
42
41
40
39
37
GDET
1
GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT CONTRAST
36
GACLAMPR
ALTAMP
CLAMP
GOUT
BRIGHT
2
LIMITER
35
EXTING
BDET
3
INT/EXT SW
34
GACLAMPG
BOUT
4
FRP
5
MATRIX
DEMOD
1/2*VCC 2
33
EXTINB
32
GACLAMPB
GND1
6
31
CONTRAST
SW
7
30
VCC1
PICTURE
YCLAMP 8 COLOR KILLER IDENT MASK HSYIN
9 BGPGE N
29
TRAP
CLAMP
CLAMP
TRAP
28
VIDEOIN PICTURE
SYNCOUT 10
SYNCSE P
27
SHIFT
TINT
ACC
APC
HPF
SYNCIN 11
26
VCXOOUT(PAL)
VCXO
25
REGOUT 12
REG
VCXOIN(PAL)
13
14
15
16
17
18
19
20
21
22
23
24
VCXOOUT(NTSC)
VCXOIN(NTSC)
IDENT
Ver.3
PALPHASE
CLEANING
ACCDET
KILLER
COLOR
FADJ
TINT
APC
CIN
-1-
NJM2527
s ABSOLUTE MAXIMUM RATINGS PARAMETERS Supply Voltage 1 Supply Voltage 2 Power Dissipation Each Adjustment Terminal Sync Out Voltage Video Input Voltage External Input Voltage Analog RGB Input Signal FRP Input Signal Voltage SYNC Input Voltage Operating Temperature Range Storage Temperature Range SYMBOL VCC1 - GND VCC2 - GND PD VIN VSD VVDIN EXTIN RGBIN FRPIN SYNCIN Topr Tstr RATINGS 10.0 10.0 1000* VCC1 10.0 3.0 VCC1 VCC1 VCC1 3.0 -40 to +85 -40 to +150 (Ta=25C) UNIT V V W V V VP-P V V V VP-P C C
*Test Board(117.0x84.0x0.8mm)mounting s RECOMMENDED OPERATING CONDITION PARAMETER Supply Voltage Range Composite Signal Voltage Y Input Signal Voltage C Input Signal Voltage Analog RGB Input Signal SYNC Input Signal HSY Input Signal TINT Adjust Voltage Color Adjust Voltage BY De-mod. Axis Adjust Voltage Picture Adjust Voltage Contrast Adjust Voltage Gamma 1 Adjust Voltage Gamma 2 Adjust Voltage Sub Gamma 1 Adjust Voltage Sub Gamma 2 Adjust Voltage Bright Adjust Voltage SYMBOL VIN YIN CIN RGBIN SYNCIN HSYIN TINT COLOR PALPHASE PICTURE CONTRAST VG1 VG2 SUBVG1R, B SUBVG2R, B BRIGHT NTSC PAL TEST CONDITION VCC1 - GND VCC2 - GND Pedestal-White Pedestal-White Amplitude of Burst Signal Pedestal-White C.Sync Sync Tip-Pedestal MIN. 4.75 VCC1 0.6 0.6 0.2 0.6 0.3 2 1.6 0 0 0 1.5 1.5 1.5 0 0 1.9 TYP. 5.0 5.0 0.7 0.7 0.3 0.7 1.0 0 (Ta=25C) MAX. 5.25 7.0 0.8 0.8 0.4 0.8 1.5 5 4.1 0.3 5 5 5 2.8 3.5 3.8 5 5 3.6 UNIT V V VP-P VP-P VP-P VP-P VP-P VP-P V V V V V V V V V V V
(Point 1) Investigation Crosstalk level when design for depend to application.
Ver.3
-2-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Operating Current 1 Operating Current 2 SYMBOL ICC1 ICC2 TEST CONDITION (TP=IC Pin No.) VCC1, No signal VCC2, No signal SG1 applied to TP33, TP35 and TP37. SG10 applied to TP5, SG11 applied to TP9, SG2 applied to TP11, define the each amplitude (BLK-WHT) at SW7=H, and TP31=0V, 2.5V, 5V as V1, V2 and V3. Then measure the each output of the non-inverting GCT1=20LOG(V1/V2) GCT2=20LOG(V3/V2) Measure points are Rout, Gout, Bout. SG3 (100KHz, 2.0MHz / 70mVp-p) applied to TP28, SG10 applied to TP5, SG11 applied to TP9, SG2 applied to TP11, 1.5V applied to TP38, 3.2V applied to TP39.measure amplitude on TP2 of non-inverting. The each gain on SG3 of sin signal of frequency define as G(2.0M),G(100K). GPSMIN1=G (2.0M)-G (100K) At SW27=H, TP27=0V GPSMAX1=G (2.0M)-G (100K) At SW27=H, TP27=5V SW13=H, TP13(B)=0V, SG3 (100KHz, 2.0MHz / 70mVp-p) applied to TP28, SG10 applied to TP5, SG11 applied to TP9,SG2 applied to TP11, 1.5V applied to TP38, 3.2V applied to TP39.measure amplitude on TP2 of non-inverting.The each gain on SG3 of sin signal of frequency define as G(2.0M),G (100K). (typical swing) GPSMIN2=G (2.0M)-G (100K) at SW27=H,TP27=0V GPSMAX1=G (2.0M)-G (100K) at SW27=H,TP27=5V SW13=H, TP13(B)=0V,TP27=2.5V,SG2 applied to TP11, SG11 applied to TP9, SG3 (100KHz, 3.579545MHz , 4.43361875MHz 200mVpp) applied to TP28. B1, B2 define output swing of TP2 at TP19=2.8V,SG3 (3.579545MHz), SG3 (100KHz). B3, B4 define output swing of TP2 at TP19=0V, SG3 (4.43361875MHz), SG3 (100kHz). GCFNT=20*LOG (B1/B2) GCFPAL=20*LOG (B3/B4) MIN. TYP. 45.0 14.5 MAX. 60.0 20.0 UNIT mA mA
GCT1 Contrast Adjust Gain Variable Range GCT2
-
-12.0
-9.0 dB
1.0
2.5
-
Image Quality Adjust Variable Minimum Range (Y/C)
GPSMIN1
-
0.0
4.0 dB
Image Quality Adjust Variable Maximum Range (Y/C)
GPSMAX1
10.0
15.0
-
Image Quality Adjust Variable Minimum Range (Composite)
GPSMIN2
-
-5.0
-1.0
dB
Image Quality Adjust Variable Maximum Range (Composite)
GPSMAX2
6.0
10.0
-
Trap attenuation (NTSC)
GCF NT
-
-45
-30
dB
Trap attenuation (PAL)
GCF PAL
-
-45
-30
Ver.3
-3-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 (3.579545MHz, 300mVpp typical swing) applied to TP13, Vo1, Vo2 and Vo3 define output swing of TP2 at set SG6 on 0dB, +6dB, -25dB toward 0.3Vpp. GA1=20LOG(Vo2/Vo1) GA2=20LOG(Vo3/Vo1) MIN. TYP. MAX. UNIT
G A1 ACC Characteristic (NTSC) GA 2
-
0.0
2.0 dB
-15.0
-10.0
-
GA 3 ACC Characteristic (PAL) GA 4
G c1 Color Control Gain Variable Range G c2
f A1 APC Capture Range (Input Composite Signal, NTSC) f A2
f A3 APC Capture Range (Input Y/C Signal, NTSC) f A4
SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 (4.43MHz, 300mVpp typical swing) applied to TP13,TP19=L.Vo1, Vo2 and Vo3 define output swing of TP2 at set SG6 on 0dB, +6dB,-25dB toward 0.3Vpp. -15.0 GA3=20LOG(Vo2/Vo1) GA4=20LOG(Vo3/Vo1) SG11 applied to TP9, SG2 applied to TP11, 0.7V applied to TP38,SG6 -70 (3.579545MHz,typical Swing 300mVpp) applied to TP13. Vo1, Vo2 and Vo3 define output swing of TP2 at TP20=0V, 2.5V, 5.0V. 2.0 GC1=20LOG(Vo1/Vo2) GC2=20LOG(Vo3/Vo2) SG11 applied to TP9, SG2 applied to TP11, SG6 (3.579545MHz, 300mVpp typical swing) applied to TP13 or TP28. This item is difference between the input frequency and 3.579545 MHz at work out 2V of TP16 voltage by variable the BURST +700 frequency. fA1=when approach BURST frequency from low frequency. fA2= when approach BURST frequency from high frequency at SW13=H,TP13(B)=0V,VIDEOIN=SG6 fA3=when approach BURST frequency from low frequency. fA4= when approach BURST +700 frequency from high frequency at SW13=L,TP13=SG6
0.0
2.0 dB
-10.0
-
-50
-40 dB
4.0
-
-2900
-700 Hz
+1500
-
-2900
-700 Hz
+1500
-
Ver.3
-4-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG11 applied to TP9, SG2 applied to TP11, TP19=0, SG6 (4.43361875, 300mVpp typical swing) applied to TP13 or TP28. This item is Difference between the input frequency and 4.43361875 MHz at work out 2V of TP16 voltage by variable the BURST frequency. fA5=when approach BURST frequency from low frequency. fA6= when approach BURST frequency from high frequency at SW13=H,TP13(B)=0V,VIDEOIN=SG6 fA7=when approach BURST frequency from low frequency. fA8= when approach BURST frequency from high frequency at SW13=L,TP13=SG6 SG3 (700mVpp, 3.579545MHz) applied to TP28, SG2 applied to TP11, SG11 applied to TP9. SW13=H, TP13 (B) voltage at change Y/C to composite by raise on TP13 (B) voltage. SG3 (700mVpp, 3.579545MHz) applied to TP28, SG2 applied to TP11, SG11 applied to TP9, SG10 applied to TP5, SW13=H, TP13 (B) Voltage at change composite to Y/C by drop on TP13 (B) voltage. SG6 (3.579545MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9. The 1 was controlled input phase so that output swing of TP2 maximum at TP19=1.6V. The each 2 and 3 were the controlled input phase so that output swing of TP2 maximum at TP19=2.8V, 4.0V. T1=2-1 T2=2-3 SG6 (3.58MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9.This item TP19 voltage at change from NTSC to PAL at down TP19 voltage. MIN. TYP. MAX. UNIT
f A5 APC Capture Range (Input Composite Signal, PAL) f A6
-
-2900
-700 Hz
+700
+1500
-
f A7 APC Capture Range (Input Y/C Signal, PAL) f A8
-
-2900
-700 Hz
+700
+1500
-
CompositeY/C Input Switching Voltage
VTHCY
1.3
1.6
1.9
V
Y/CComposite Input Switching Voltage
VTHYC
0.7
1.0
1.3
V
T1 TINT Variable Range T2
+30
+45
-
deg
-
-45
-30
NTSC /PAL Switching Voltage
VTHNP
0.4
0.7
1.0
V
Ver.3
-5-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Color Killer Operating Input Level (NTSC) SYMBOL TEST CONDITION (TP=IC Pin No.) SG6 (3.58MHz, 300mVpp) applied to TP13, SG2 applied to TP11, SG11 applied to TP9.This item Measure input level at killer is tern on at decrease the input swing. TP19=0V, SG2 applied to TP11, SG11 applied to TP9, SG6 (4.43MHz, 300mVpp) applied To TP13.This item measure input level at killer is tern on at decrease The input swing. SG2 applied to TP11, SG11 applied to TP9, SW7=H, SG1 (700mVpp) applied to TP33, TP35, TP37, SG10 applied to TP5. Then VRB, VGB, and VBB define the non-invert black level of TP48, TP2, TP4. VRBI, VGBI, and VBBI define the invert black level of them. VBRGB=VRB-VGB,VBB-VGB= VRBl-VGBl, SW7=L,SG4 applied to TP28. Then VRB (Y),VGB (Y), and VBB (Y) defines the non-inverting black level of TP48, TP2, and TP4. VRBI (Y), VGBI(Y), and VBBI (Y) define the invert black level of them. VBlE=VRB-VRB (Y), VGB-VGB (Y), =VBB-VBB (Y),VRBl-VRBl(Y), =VGBl-VGBl(Y),VBBl-VBBl(Y) SG2 applied to TP11, SG11 Applied to TP9, SW7=H, SG1 (700mVpp) applied to TP33, TP35, TP37, SG10 applied TP5. This item measure the signal swing (BLK-WHT) of TP48, TP2, TP4. VRG, VGG, VBG define the noninverting side of them. VRGl, VGGl, VBGl define the invert side of them. SW7=L, SG4 applied TP28. This item measure the signal swing (BLK-WHT) of TP48, TP2, TP4. VYRG, VYGG, VYBG define the non-inverting side of them. GINV =20LOG(VRGI/VRG) =20LOG(VGGI/VGG) =20LOG(VBGI/VBG) VRGB =20LOG(VRG/VGG) =20LOG(VGG/VBG) =20LOG(VBG/VRG) GIE =20LOG(VRG/VYRG) =20LOG(VGG/VYGG) =20LOG(VBG/VYBG) MIN. TYP. MAX. UNIT
VKIN1
-
-42
dB
Color Killer Operating Input Level (PAL)
VKIN2
-
-37
-
Output Level Voltage Difference among RGB
VBRGB
-150
0
+150
mV
INT-EXT Output Black Level Voltage Difference
VBIE
-150
0
+150
mV
Gain Difference Between Invert And Non-invert
GINV
-0.6
0
+0.6
Gain Difference Among RGB
GRGB
-0.6
0
+0.6
dB
INT-EXT Gain Difference
GIE
-0.6
0
+0.6
Ver.3
-6-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER FRP Input Threshold Voltage SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11, SG11 Applied to TP9, SW7=H, SG1 applied to TP35.This item define TP5 voltage at invert output of TP2 at increase TP5 voltage. SG2 applied to TP11, SG11 applied to TP9, SW7=H, 1.5V applied to TP31 , 3.2V applied to TP38, SG5 (100kHz) applied to TP35. Sine wave of non-invert output signal of TP2 is input signal frequency at -3dB Toward swing of 100kHz at variable frequency of SG5. Switching Voltage of TP7 VTHEXH=ON Level Voltage Switching Voltage of TP7 VTHEXL=OFF Level Voltage SG2 applied to TP11,SG11 applied to TP9,SW7=H,SG10 applied to TP5 SG7(350mVpp) applied to TP33,TP35,TP37. This item measure the slope on TP48,TP2, and TP4 at TP38=1.8V,TP39=3.0V. Output voltage MIN. TYP. MAX. UNIT
VTHFRP
1.2
1.5
1.8
V
Interface Frequency as Characteristic
fINT
5.0
6.5
-
MHz
EXTRGB Input Threshold Voltage
VTHEXH VTHEXL
2.0 -
-
V 0.8
G1
22.0
26.0
30.0
Gamma Characteristic
dB
G2
G2
7.5
G1
11.5
15.5
Synchronous Separate Input Sensitivity Current Synchronous Separate Output ON Voltage Leak Current at Synchronous Separate Output OFF Synchronous Separate Output Delay 1
IIS
VON
ISL
tPHLSY
Input voltage Current flow from TP11. Then measure current at TP10 change from High to Low. SG2 applied to TP11.Then Measure output signal level voltage of TP10. Current 40uA flow from TP11.Then measure current of sink to TP10 at TP10=5V. SG2 applied to TP11.Then Measure time difference of 50% swing level of SYNCIN and TP10
SYNCIN tPHLSY
-
21
30
A
-
0.2
0.5
V
-
-
1.0
A
-
0.3
s
Synchronous Separate Output Delay 2
tPLHSY
TP10 tPLHSY
-
0.4
-
Ver.3
-7-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Synchronous Separate Output Turn OFF Time Synchronous Separate Output Turn OFF Time External Synchronous Input Timing 1 External Synchronous Input Timing 2 External Synchronous Input Timing 3 SYMBOL ttHL ttLH TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11.Then measure time difference of 20% to 80% swing level of TP10.
Sync Separate Output
MIN. -
TYP. 0.2 0.2
MAX. -
UNIT
s -
t1
3.0
-
-
t2
t1 External Sync Input
t3
2.0
-
-
s
t3
t2
1.6
2.0
2.4
RGB Output Delay Time 1
tPHL1
RGB Output Delay Time 2
tPHL2
CTRGB1
Crosstalk Among RGB
CTRGB2
CTRGB3
SG2 applied to TP11, SG11 applied to TP9, SW7=H, SG10 applied TP5, SG8 (0.35Vpp) applied to TP33, TP35, TP37. Then measure time difference of 50% swing level of TP33 and TP48,TP35 and TP2, TP37 and TP4 tPHL1=turn ON tPHL2=turn OFF SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP7=H, TP5=H, TP35= TP33=GND, SG5 (1MHz, 700mVpp) applied to TP37. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP2, TP4 toward TP48. SG2 applied to TP11 , SG11 applied to TP9,SW7=H, TP7=H,TP5=H,TP37=TP33=GND, SG5 (1MHz, 700mVpp) applied to TP35. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP48, TP4 toward TP2. SG2 applied to T P11, SG11 applied to TP9,SW7=H, TP7=H,TP5=H, TP37=TP35=GND, SG5 (1MHz, 700mVpp) applied to TP33. Measure the output of 1MHz component on TP48, TP2 and TP4. Calculate the swing ratio of TP48, TP2 toward TP4.
-
0.1
s
-
0.1
-
-
-50
-40
-
-50
-40
dB
-
-50
-40
Ver.3
-8-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied to TP37, TP28=GND. Measure the output of 1MHz component on TP48. Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied To TP35, TP28 =GND. Measure the output of 1MHz component on TP2.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG5 (1MHz, 700mVpp) applied To TP33, TP28 =GND. Measure the output of 1MHz component on TP4.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied to TP28, TP37=GND. Measure the output of 1MHz component on TP48.Calculate the swing ratio of TP7=5V, 0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied To TP28, TP35=GND. Measure the output of 1MHz component on TP2.Calculate the swing ratio of TP7=5V,0V. SG2 applied to TP11, SG11 applied to TP9, SW7=H, TP5=H, SG3 (1MHz, 700mVpp) applied To TP28, TP33=GND. Measure the output of 1MHz component on TP4.Calculate the swing ratio of TP7=5V, 0V. MIN. TYP. MAX. UNIT
CTERINT
-
-50
-35
Crosstalk 1 Between SW (EXTINT)
CTEGINT
-
-50
-35
dB
CTEBINT
-
-50
-35
CTIE1R
-
-50
-35
Crosstalk 2 Between SW (INTEXT)
CTIE1G
-
-50
-35
dB
CTIE1B
-
-50
-35
Ver.3
-9-
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER SYMBOL TEST CONDITION (TP=IC Pin No.) SG2 applied to TP11 , SG11 applied to TP9,SW7=H,SG10 applied to TP5. When TP44=5V, define the non-invert black level of TP48, TP2, TP4 as VRB, VGB, VBB. When TP44=5V, define the invert black level of TP48,TP2,TP4 as VRBI,VGBI, VBBI. When TP44=0V, define the non-invert black level of TP48,TP2, TP4 as VRB (B), VGB (B), VBB (B). When TP44=0V, define the invert black level of TP48,TP2,TP4 as VRBI(B), VGBI (B), VBBI (B). VSB=VRB-VRB (B), VGB-VGB (B), VBB-VBB (B) =VRBI (B)-VRBI, VGBI (B)-VGBI, VBBI (B)-VBBI Delay time of Y signal and C signal At TP2. SG2 applied to TP11.SG11 applied To TP9.SW7=H, TP7=H, SG8 applied to TP33, TP35, TP37.TP11=SG2. Measure the tern on and tern off time at 20% to 80% of output wave on TP48, TP2, TP4.Then convert to slew rate. SG6 (3.58MHz, 300mVpp) applied to TP13, SG10 applied to TP5, SG2 applied to TP11,SG11 applied to TP9.TP38=1.5V,TP39=3.0V, vary the chroma phase on SG6,define non-inverting maximum output swing of TP48, TP2, SYNC IN as VR, VG, VB. (R-Y)/(B-Y)=VR/VB (G-Y)/(B-Y)=VG/VB MIN. TYP. MAX. UNIT
Side-black Level
VSB
-
100
-
mV
Delay Between Y-C
TdYC
-
200
-
ns
RGB Slew Rate
SRRGB
9
22
40
V/s
Demodulation Relativity Swing (R-Y/B-Y) Demodulation Relativity Swing (G-Y/B-Y)
R-Y B-Y
-
0.65
-
G-Y B-Y
-
0.45
-
Ver.3
- 10 -
NJM2527
s ELECTRICAL CHARACTERISTICS (Ta=25C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V, TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L) PARAMETER Demodulation Relativity Phase (R-Y/B-Y) Demodulation Relativity Phase (G-Y/B-Y) SYMBOL RB TEST CONDITION (TP=IC Pin No.) SG6 (3.58MHz, 300mVpp) applied to TP13, SG10 applied to TP5, SG2 applied to TP11, SG11 applied to TP9. TP38=1.5V,TP39=3.0V,vary the chroma phase on SG6, define the phase at maximum output amplitude of TP48, TP2, TP4 as R,G,B. RB=R-B GB=G-B SG6 (3.58MHz, 300mVpp) applied to TP13, DC5V applied to TP5, SG2 Applied to TP11, SG11 applied to TP4, adjust the chroma phase on SG6 for maximum the amplitude of TP4. Measure the ratio of 7.159059MHz component to the 15.734kHz component. MIN. TYP. MAX. UNIT
-
90
deg
GB
-
240
-
Demodulation Output residual Carrier
VCR
-
-40
-
dB
Ver.3
- 11 -
NJM2527
s APPLICATION CIRCUIT EXAMPLE (NTSC/PAL)
1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1
0.7Vp-p
0.01
1
SIDEBLACK
SUBVG2B
SUBVG2R
SUBVG1B
VG2
ROUT
100
5V 45
5V 43
5V 42
5V 41
5V 40
5V 39
5V 38
100
48
47
46
44
VG1
+
37
0.1 EXTINR
BRIGHT
+
RDET
SUBVG1R
VCC2
75
0.1
EXTINR
Analog RGB Signal
1
+
1 GDET ALTAMP LIMITER BRIGHT 2 GOUT
GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT
36
0.1
Analog RGB Signal
EXTING 0.7Vp-p
GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p
To Liquid crystal RGB input terminal
100
EXTING INT/EXT SW 34
1
+
3 BDET 4 1/2*VCC2
Analog RGB Signal
100
1H 5V
BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32
75 GACLAMPB 5V 31 CONTRAST VCC1 100
+
0.1
0.1 8.2uH +5V
TRAP 15uH 75
0.01 100p
Compsite Video Signal
1.0Vp-p
VIDEOIN 28 1 5V 27
+
Liquid crystal panel PLL input, output
5V 360 SYNCIN 75 0.1
1k
HSYIN 5V
VIDEOIN
SYNCOUT 910k
+
PICTURE 500 SHIFT TINT ACC 11 APC HPF SYNCSEP 26 VCXO 25 *3
0.1 3p
SYNCIN 1000p 12 REGOUT REG
VCXOOUT(PAL) VCXOIN(PAL)
CSYNC Signal
Compsite Signal
1.0Vp-p 0.1
13 CIN
14 ACCDET
15 FADJ
16 KILLER
17 IDENT CLEANIN
18
19 TINT 5V
20 COLOR 5V
21 PALPHASE 5V
22 VCXOOUT(NTSC) VCXOIN(NTSC)
23
24 APC 5V 5.6k 0.01 0.47 8.2k
+
0.01
0.047
56p 10M
680p
12k
0.1
1M
0.1
0.1
0.1
75
*1
5V CIN 0.3Vp-p *1:332PN-2636BS(TOKO) *2:3.579545MHz X'tal DSX151GA(DAISHINKU) *3:4.433619MHz X'tal DSX151GA(DAISHINKU)
Color Signal
3p
*2
1.8k
Ver.3
- 12 -
NJM2527
s APPLICATION CIRCUIT EXAMPLE (NTSC)
1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1
0.7Vp-p
0.01
1
SIDEBLACK
SUBVG2B
SUBVG2R
SUBVG1B
VG2
ROUT
100
5V 45
5V 43
5V 42
5V 41
5V 40
5V 39
5V 38
100
48
47
46
44
VG1
+
37
0.1 EXTINR
BRIGHT
+
RDET
SUBVG1R
VCC2
75
0.1
EXTINR
Analog RGB Signal
1
+
1 GDET ALTAMP LIMITER BRIGHT 2 GOUT
GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT
36
0.1
Analog RGB Signal
EXTING 0.7Vp-p
GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p
To Liquid crystal RGB input terminal
100
EXTING INT/EXT SW 34
1
+
3 BDET 4 1/2*VCC2
Analog RGB Signal
100
1H 5V
BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32
75 GACLAMPB 5V 31 CONTRAST VCC1 100
+
0.1
0.1 8.2uH +5V
TRAP 15uH 75
0.01 100p
Compsite Video Signal
1.0Vp-p
VIDEOIN 28 1 5V 27
+
Liquid crystal panel PLL input, output
5V 360 SYNCIN 75 0.1
1k
HSYIN 5V
VIDEOIN
SYNCOUT 910k
+
PICTURE SHIFT 11 SYNCSEP 26 VCXO 25 VCXOIN(PAL) VCXOOUT(PAL)
0.1
SYNCIN 1000p 12 REGOUT REG
CSYNC Signal
Compsite Signal
1.0Vp-p 0.1
13 CIN
14 ACCDET
15 FADJ
16 KILLER
17 CLEANIN
18 IDENT
19 TINT 5V
20 COLOR 5V
21 PALPHASE
TINT 22
ACC
APC
HPF
23 VCXOOUT(NTSC)
24 APC 5V 5.6k 0.01 0.47 8.2k
+
VCXOIN(NTSC)
12k
0.047
0.1
1M
0.1
0.1
75
CIN 0.3Vp-p *1:3.579545MHz X'tal DSX151GA(DAISHINKU)
Color Signal
3p
*1
1.8k
Ver.3
- 13 -
NJM2527
s APPLICATION CIRCUIT EXAMPLE (PAL)
1H +5V 5V 0V 0.1 0.1 0.1 0.1 0.1 0.1
0.7Vp-p
0.01
1
SIDEBLACK
SUBVG2B
SUBVG2R
SUBVG1B
VG2
ROUT
100
5V 45
5V 43
5V 42
5V 41
5V 40
5V 39
5V 38
100
48
47
46
44
VG1
+
37
0.1 EXTINR
BRIGHT
+
RDET
SUBVG1R
VCC2
75
0.1
EXTINR
Analog RGB Signal
1
+
1 GDET ALTAMP LIMITER BRIGHT 2 GOUT
GAMMA CONTROL GAMMA CORRECT GAMMA CORRECT GAMMA CORRECT
36
0.1
Analog RGB Signal
EXTING 0.7Vp-p
GACLAMPR CONTRAST CLAMP 35 0.1 75 0.1 GACLAMPG 33 0.1 EXTINB MATRIX EXTINB 0.7Vp-p
To Liquid crystal RGB input terminal
100
EXTING INT/EXT SW 34
1
+
3 BDET 4 1/2*VCC2
Analog RGB Signal
100
1H 5V
BOUT DEMOD 5 FRP 6 GND1 5V 7 SW 0.1 YCLAMP 9 BGPGEN 10 8 PICTURE CLAMP COLOR KILLER CLAMP IDENT MASK TRAP 29 30 32
75 GACLAMPB 5V 31 CONTRAST VCC1 100
+
0.1
0.1 8.2uH +5V
TRAP 15uH 75
0.01 100p
Compsite Video Signal
1.0Vp-p
VIDEOIN 28 1 5V 27
+
Liquid crystal panel PLL input, output
5V 360 SYNCIN 75 0.1
1k
HSYIN 5V
VIDEOIN
SYNCOUT 910k
+
PICTURE 500 SHIFT TINT ACC 11 APC HPF SYNCSEP 26 VCXO 25 *2
0.1 3p
SYNCIN 1000p 12 REGOUT REG
VCXOOUT(PAL) VCXOIN(PAL)
CSYNC Signal
Compsite Signal
1.0Vp-p 0.1
13 CIN
14 ACCDET
15 FADJ
16 KILLER
17 IDENT CLEANIN
18
19 TINT
20 COLOR 5V
21 PALPHASE 5V
22 VCXOIN(NTSC)
23 VCXOOUT(NTSC)
24 APC 5V 5.6k 0.01 0.47 8.2k
+
0.01
0.1
0.047
1M
56p 10M
680p
12k
0.1
*1
5V CIN 0.3Vp-p *1:332PN-2636BS(TOKO) *2:4.433619MHz X'tal DSX151GA(DAISHINKU)
Color Signal
0.1
75
Ver.3
- 14 -
NJM2527
s INPUT SIGNAL SYMBOL No Sync 10 Step Video Signal INPUT SIGNAL
350mVp-p SG1 700mVp-p
1H Composite Y Signal with Sync signal 4.7s SG2 1H 286mVp-p or 10 STEP Signal
Sine Video Signal with Sync Variable amplitude SG3 350mVp-p
Variable frequency and amplitude 100mVp-p, 700mVp-p
286mVp-p 1H
10STEP Vide Signal
700mVp-p SG4
1H
Ver.3
- 15 -
NJM2527
s INPUT SIGNAL SYMBOL Sine Video Signal with No sync Variable frequency and amplitude SG5 Variable amplitude 400mVp-p, 700mVp-p 350mVp-p 1H INPUT SIGNAL
C Signal
SG6
Burst Swing =300mVP-P Chroma Swing =300mVP-P
Ramp Video Signal with no sync
SG7
350mVp-p
1H
Turn ON, Turn OFF Video Signal under 50ns
SG8
350mVp-p
1H
Turn ON, Turn OFF Signal under 50ns
5V
SG9
5Vp-p 0V 1H
Ver.3
- 16 -
NJM2527
s INPUT SIGNAL SYMBOL FRP Signal of inverting Every 1H INPUT SIGNAL
1H
SG10
5V 5Vp-p 0V
Horizontal Sync. Signal Synchronous to SG2
4.7S
1H 286mVp-p t1 t3=2S(typ) 2.0V t2=5S(typ) 0.8V SG11 SG2
SG11
Ver.3
- 17 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the capacitor for G signal center mpdulator. Leakless capacitor for use. INSIDE EQIVALENT CIRCUIT
VCC2
5K
1
GDET
200
GND1
GND1
G signal output.
VCC2
2
GOUT
250
GND1 GND1 32K
Connect to the capacitor for B signal center modulator. Leakless capacitor for use.
5K
VCC2
3
BDET
200
GND1
GND3
B signal output.
VCC2
4
BOUT
250
GND3 GND1 32K
Ver.3
- 18 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the polarity reversal pulse of RGB output signal. Input: 5VP-P INSIDE EQIVALENT CIRCUIT
VCC1
5
FRP
200 30K 36K GND1 GND1 30K 36K 30K 36K
Connect to GND.
6
GND1
Select the internal/external signal. SW=Low:Internal signal mode High:External signal mode
VCC
7
SW
SW L H
OUT INT EXT
36K GND GND 36K 36K 200 30K 30K 30K
Connect to the CLAMP capaciter for Y-signal. Leakless capacitor for use.
VCC1
8
YCLAMP
GND1
GND1
Ver.3
- 19 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the outside synchronous. Fripfrop reverse with the start of synchronous signal at PAL. INSIDE EQIVALENT CIRCUIT
VCC1
9
HSYIN
200 20K
40K GND1 GND1
Composite synchronous signal output, non-inverting and open collector.
VCC1
10
SYNC OUT
4K
30K GND1
8K GND1
Synchronous signal input, synchronize with RGBOUT. Input level is 2Vp-p maximum,and can input include Y-signal and composite video signal. 11 SYNCIN
150
VCC1
GND1
GND1
Regurator output,connect to decupling capacitor internal use only.
VCC1
12
REGOUT
24.5K 30K
GND1
GND1
Ver.3
- 20 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Chroma signal input,300mVP-P CIN=GND:Composite input mode INSIDE EQIVALENT CIRCUIT
VCC1
5K
13
CIN
200
GND1 GND1
Connect to ACC filter.
VCC1 500
14
ACCDET
500 60K 500 GND1
Adjust the frequency with internal filter.
VCC1
15
FADJ
6K 6K 6K
GND1
GND1
Connect to the color killer filter.
VCC1
21.5K
16
KILLER
1.2K GND1 GND1
Ver.3
- 21 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the burst cleaning coil at PAL selection. NTSC selection:open
1.8K
INSIDE EQIVALENT CIRCUIT
VCC1
17
CLEAN ING
200
GND
GND1
Connect to the ident filter at PAL selection. NTSC selection:open
VCC1
21.5 K
18
IDENT
1.2K GND GND1
Adjust Hue signal. Adjustable Hue range:45deg to control DC supply. TINT=GND:PAL mode =High:NTSC mode 19 TINT
200
VCC1
25K
35K
40K GND1 GND1
Adjust color. Adjust the tint color by input voltage.
60K
VCC1
20
COLOR
200 24K 40K GND1
40K
GND1
Ver.3
- 22 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the BY de-modulator axis. Adjust the de-modulation angle to 90 degree at PAL. NTSC selection:open PAL PHASE INSIDE EQIVALENT CIRCUIT
VCC1
21.5 K 40K
21
200
79.5K GND1 GND1
VCXO input at NTSC.
VCC1 5K 10K 500 10K 10K 500
22
VCXOIN (NTSC)
GND1
VCXO output at NTSC.
VCC1
23
VCXO OUT (NTSC)
4K
GND1
GND1
Connect to the APC detector filter.
VCC1
18K
24
APC
GND1
GND1
Ver.3
- 23 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION VCXO input at PAL.
VCC1 5K 10K 500 10K 10K 500
INSIDE EQIVALENT CIRCUIT
25
VCXOIN (PAL)
GND1
VCXO output at PAL.
VCC1
26
VCXO OUT (PAL)
4K
GND1
GND1
Adjust the frequency of Y-signal for revise outline of Y-signal. Emphasize outline,when voltage increase.
VCC1 27K
27
PICTURE
200 33K
28K GND1 GND1
Composite video signal / Y-signal input. CIN (6pin) =GND:Composite input mode.
VCC1
28
VIDEO IN
GND1
GND1
Ver.3
- 24 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Connect to the ceramic condenser (100pF) or TRAP filter for Y/C separate. INSIDE EQIVALENT CIRCUIT
VCC1
29
TRAP
300
250
10K GND1 GND1
Supply voltage,+5V Connect to +5V supply
30
VCC1
Adjust the gain of RGB signal. Adjust the RGB signal range by CONTRAST input voltage.
VCC1 VCC 40K 50K
20K
31
CONT RAST
200
GND1
Same as above
GND1
Same as above Connect to the CLAMP pedestal level of B signal. Leakless capacitor for use.
VCC1
32
GA CLAMPB
GND1
GND1
Ver.3
- 25 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION External B(RGB) signal input, 700mVP-P and source color signal. INSIDE EQIVALENT CIRCUIT
VCC1
33
EXTINB
GND1
GND1
Connect to the CLAMP pedestal level of G signal. Leakless capacitor for use.
VCC1
34
GA CLAMPG
GND1
GND1
External G(RGB) signal input, 700mVP-P and source color signal.
VCC1
35
EXTING
GND1
GND1
Connect to the CLAMP pedestal level of R signal. Leakless capacitor for use.
VCC1
36
GA CLAMPR
GND1
GND1
Ver.3
- 26 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION External R(RGB) signal input, 700mVP-P and source color signal INSIDE EQIVALENT CIRCUIT
VCC1
37
EXTINR
GND1
GND1
Adjust the first point of low side in RGB characteristic. Pre-set and controlled RGB together.
VCC1 44K 50K 35K 300 300
VCC1
38
VG1
200
40K GND1
GND1
Same as above Same as above
Adjust the first point of high side in RGB characteristic. Pre-set and controlled RGB together.
VCC VCC1 44K 30K 10K 300 300
39
VG2
40K 200 GND1
Same as above
GND1
Same as above Adjust the second point of low side in R signal characteristic. Pre-set and not controlled RGB together,adjust the R signal only.
VCC1
40K
44K
40
SUBVG1R
200 40K
70K 40K
GND1
GND1
Ver.3
- 27 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the second point of low side in B signal characteristic. Pre-set and not controlled RGB together,adjust the B signal only. 41 SUBVG1B INSIDE EQIVALENT CIRCUIT
VCC1
40K
44K
200 40K
70K 40K
GND1
GND1
Adjust the second point of high side in R signal characteristic. Pre-set and not controlled RGB together,adjust the R signal only. 42 SUBVG2R
VCC1
40K
44K
200 40K
40K 40K
GND1
GND1
Adjust the second point of high side in B signal characteristic. Pre-set and not controlled RGB together,adjust the B signal only. 43 SUBVG2B
VCC1
40K
44K
200 40K
40K 40K
GND1
GND1
Control signal input with both black side of moniter,when aspect ratio change 4:3 and 16:9. SIDEBLACK=High:Black level SIDEBLACK=Low or OPEN:Through RGB signal is controlled together. 44 SIDE BLACK
200 30K 36K GND1 30K 36K
VCC1
30K 36K GND1
Ver.3
- 28 -
NJM2527
s EQUIVALENT CIRCUIT PI N NO. SYMBOL FUNCTION Adjust the bright of RGB signal,controlled black level. INSIDE EQIVALENT CIRCUIT
VCC1 VCC1 10
75
45
BRIGHT
200 GND
Same as above
GND1
Same as above RGB output Supply voltage,+5V Connect to +5V supply. VCC2 VCC1
46
VCC2
Connect to the capacitor for R signal center modulator. Leakless capacitor for use.
VCC2
5K
47
RDET
200
GND1
GND2
R signal output.
VCC2
48
ROUT
250
GND2 GND1 32K
Ver.3
- 29 -
NJM2527
s PIN FUNCTION at NO USE
No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SYMBOL GDET GOUT BDET BOUT FRP GND1 SW YCLAMP HSYIN SYNCOUT SYNCIN REGOUT CIN ACCDET FADJ KILLER CLEANING IDENT TINT COLOR PALPHASE VCXOIN (NTSC) VCXOOUT (NTSC) APC FUNCTION Connect to capacitor for demodulate G signal OPEN Connect to capacitor for demodulate B signal OPEN Input inverting pulse of RGB output GND OPEN: composite mode only OPEN Connects to external synchronous Signal without fail. OPEN Synchronous signal input Connect to capacitor without fail. GND: when composite signal input OPEN: other OPEN Connect with 12K OPEN OPEN OPEN NTSC MODE: 1.6V or higher voltage PAL MODE: GND OPEN OPEN OPEN OPEN OPEN No 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SYMBOL VCXOIN (PAL) VCXOOUT (PAL) PICTURE VIDEOIN TRAP VCC1 CONTRAST GACLAMPB EXTINB GACLAMPG EXTING GACLAMPR EXTINR VG1 VG2 SUBVG1R SUBVG1B SUBVG2R SUBVG2B SIDEBLACK BRIGHT VCC2 RDET ROUT OPEN OPEN OPEN Connect with 0.01uF to GND OPEN Supply voltage (+5V) Input fixed DC voltage Connect to clamp capacitor OPEN Connect to clamp capacitor OPEN Connect to clamp capacitor OPEN Input fixed DC voltage Input fixed DC voltage OPEN OPEN OPEN OPEN OPEN Input fixed DC voltage Supply voltage (+5V VCC1) Connect to capacitor for demodulate R signal GND FUNCTION
Ver.3
- 30 -
NJM2527
s None-use PIN Connection 1). Do not use composite mode demodulator. Color demodulate system: 14pin, 16-18pin ,20pin and 22-26pin are OPEN. NTSC: 19pin connect to the DC voltage of 1.6V over. PAL: 19pin connect to GND. Brightness signal processing system: 28pin connect with 0.01uF to GND. 29pin, 8pin ,27pin are OPEN. 2). Do not use composite mode NTSC demodulator. 22pin, 23pin are OPEN. 19pin connect to GND. 3). Do not use composite mode PAL demodulator. 17pin, 18pin, 25pin,26pin and 21pin are OPEN. 19pin connect to the DC voltage of 1V over. 4). Do not use external analog RGB input. 7pin, 33pin, 35pin and 37pin are OPEN. 5). Do not use synchronous signal processor. Because it is necessary to produce BGP and Clamp Pulse in IC, please use a synchronous signal processing circuit without fail. 6). Do not use the other SYNC IN terminal. SYNC signal input 11pin. Please do not 11pin and 9pin openly. 7). Do not use C-SYNC output. 10pin is OPEN. 8). Do not use the adjust terminal of interface and Gamma circuit. As for 31pin, 38pin, 39pin, 45pin, please input DC voltage of request without fail. 40-43pin are OPEN. 9). Do not use SIDE BLACK circuit. 44pin is OPEN.
Ver.3
- 31 -
NJM2527
s FUNCTION DESCRIPTION 1. Synchronous Mode The composite signal or synchronous signal input to pin-11 (SYNCIN). The signal that was input to pin-11 (SYNCIN) is separated synchronous. The pin-9 (HSYIN) input external synchronous signal without fail. In the case that HSY (Horizontal synchronous pulse) is not input, NJM2527 does not do a normal action, because inside clamp pulse does not generate. 2. Color Signal Play Mode 1) ACC Circuit (Automatic Chroma Control) The chroma signal input to pin-13 (CIN), and detect the burst-signal through the HPF circuit, and controlled stable burst-signal feedback from demodulate output. When the pin-13 is GND level, the mode is composite input, and pin-28 (VIDEOIN) composite-video signal input to ACC circuit. 2) APC Circuit, and VCXO (Automatic Phase Control) The burst signal level of chroma is constant by ACC circuit. The PLL circuit consists of VCXO and locked burst signal. The pin-19 (TINT) input DC voltage adjust the VCXO phase, and adjust the demodulate axis. When the pin-19 is GND, the mode is PAL, and only accepts analog RGB input. 3) Color Killer The chroma signal is output to demodulator when PLL locked, and the color killer is - 42dB(NTSC). 4) IDENT Circuit NJM2527 synchronizes to H-SYNC in PAL mode. And, the career is reversing 90-degree phases. IDENT circuit arranges the flip-flop polarity (that is driven by HD) and the color burst phase of the chroma signal that are input from 13-Pin (CIN). In the case that IDENT circuit does not act normally, Color-Killer acts, and the chroma signal is not output to de-modulator. 5) CLEANING Cleaning filter avoids receiving the influence of burst signal noise that is input to APC and ACC circuit by tuning circuit. Chroma phase can be adjusted by utilizing this cleaning filter. 6) Color Circuit This circuit adjusts the color TINT. The pin-20 (COLOR) adjusts the chroma signal range from ACC circuit. This signal demodulator without burst signal by burst gate pulse (BGP). 7) DEMOD This DEMOD circuits demodulate color differential signal after the ACC circuit. The RGB signal consists of color differential and Y signal by matrix circuit, and input to Int./Ext. signal switches. 3. Y-signal Mode 1) TRAP The composite video signal input to pin-28 (VIDEOIN) without the chroma by TRAP circuit. The TPAP frequency is 3.58MHz or 4.43MHz, and not through when Y/C input mode. 2) Picture Circuit The Y/composite-signal input to pin-28 (VIDEOIN) without the synchronous signal. The pin-27 (PICTURE) adjusts the frequency characteristic around 2MHz and emphasizes the outline. The pin-27 level emphasizes outline depend on the DC voltage. includes second differential circuit. 4. INT./EXT. Signal Switch Mode The analog RGB signal (0.7VP-P typ.) input to pin-37, pin-35, and pin-33, and these signal clamps pedestal. The ext-signal select Y/C-signal or Int-signal by pin-7 (SW).
Ver.3
- 32 -
NJM2527
5. RGB Signal Mode 1) Contrast The pin-31 (CONTRAST) adjusts the all of RGB signal, which is black-to-white range. 2) Gamma Amplifier This circuit is non-liner amplifier to adjust the RGB signal equal to the luminous gamma characteristics. There is two-point adjustment for accurate correction. The pin-38 (VG1) adjusts low side, and the pin-39 (VG2) adjusts high side.
Input Signal
VG1 adjust
VG2 adjust
3) Sub Gamma Circuit This circuit adjusts gamma characteristics of B/R signal, and sub gamma adjusts white-balance for the monitor. The pin-40 (SUBVG1R) and pin-42 (SUBVG2R) adjust low side with R-signal and high side with gamma characteristics. The pin-41 (SUBVG1B) and pin-43 (SUBVG2B) adjust low side with B-signal and high side for gamma characteristics. These terminal controls R-signal and B-signal separately. 4) Bright The pin-45 (BRIGHT) clamps the pedestal after the brightness adjustment (black to black). 5) Side Black The side-black circuit output black level, when the mode is black mask for wide picture. The RGB signal is black level when pin-44 (SIDEBLACK) input signal is low period only. 6) Output Amplifier The pin-5 (FRP) input to the timing pulse with inverting RGB output, and output the inverting RGB signal per every 1H. The RGB outputs are: FRP-High: Non-inverting output FRP-Low: Inverting output The center voltage is preset to half of Vcc2.
Yin
FRP
RGB output
Vcenter
Ver.3
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NJM2527
[CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
Ver.3
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Price & Availability of NJM2527

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