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U2763B
900-MHz ISM Band Transmitter
Description
The transmitter IC U2763B is specifically designed for cordless telephone applications in the 900-MHz ISM band. The IC is manufactured using TEMIC Semiconductors' advanced UHF process. It consists of a 900-MHz VCO and mixer, 0-dBm PA and buffers. The device features 2.9-V operation. In conjunction with TEMIC Semiconductors' receiver IC U2762B and the PLL U2781B, a complete ISM RF IC kit is available which fits perfectly with AMD's PhoX controllers AM79C432A and AM79C433. Electrostatic sensitive device. Observe precautions for handling.
Features
D 0-dBm PA and RX/TX VCO integrated D Buffer for PLL and mixer integrated D Supply-voltage range 2.7 V to 3.3 V D Low current consumption, typical 16 mA D SSO20 package
Benefits
D Single VCO for entire RF part saves cost D Integrated PA stage with 50-W output saves external
components and board space
D Integrated mixer to increase duplex spacing
Block Diagram
PA VCC 20 PA out 19 PAout REF 18 PA in 17 PAin REF 16 PA GND 15 Out TX 14 MX CTRL 13 IF in 12 IF REF 11
PA
PA Buffer
IF Buffer
B2
Mix VCO PLL Buffer
1 MX EN
2 MX VCC
3 MX out
4 MX GND
5 VCO GND
6 Tank
7 Tank REF
8 VCO VCC
9 VCO REF
10 VCO out
13952
Figure 1. Block diagram
Ordering Information
Extended Type Number U2763B-AFS U2763B-AFSG3 Package SSO20 SSO20 Remarks Tube, MOQ 830 pcs Taped and reeled, MOQ 4000 pcs
Rev. A1, 19-May-99
1 (8)
Preliminary Information
U2763B
Functional Description VCO
Symmetrical cross-coupled pair type VCO with external tank circuit. It can be used with LC or l/4 resonator circuit.
PLL Buffer
The PLL buffer is a dedicated output to drive a PLL circuit.
PA
The PA is designed to drive a 50-W load with 0 dBm (1 mW, compliant with FCC rules) and can be connected directly to the TX/RX switch.
Divide-by-2 Stage + Mixer
The duplex frequency offset can be increased by shifting the RX LO frequency via the PLL xtal frequency and optionally by half of the xtal frequency. These functions are activated by MX CTRL (Pin 13).
PA Buffer
The PA buffer decouples the VCO from the PA to reduce VCO pulling when the PA is turned on and off.
Pin Description
MX EN 1 MX VCC 2 MX out 3 20 PA VCC 19 PA out 18 PAout REF 17 PA in 16 PAin REF 15 PA GND 14 Out TX 13 MX CTRL 12 IFin 11 IF REF
13961
MX GND 4 VCO GND 5 Tank 6 Tank REF 7 VCO VCC VCO REF VCO out 8 9 10
Figure 2. Pinning
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Symbol MX EN MX VCC MX out MX GND VCO GND Tank Tank REF VCO VCC VCO REF VCO out IF REF IF in MX CTRL Out TX PA GND PAin REF PA in PAout REF PA out PA VCC
Function Mixer enable Power supply mixer Mixer output Mixer ground VCO ground Resonator Resonator reference Power supply VCO VCO output reference VCO output IF input reference IF input Control pin for mixer modi Transmit-signal output Power-amplifier ground Power-amplifier input reference Power-amplifier input Power-amplifier output reference Power-amplifier output Power supply for power amplifier
Absolute Maximum Ratings
Parameters Supply voltage Input voltages Pins 1 and 13 Input voltages Pins 3, 6, 7, 9, 10, 11, 12, 14, 16, 17, 18 and 19 Junction temperature Storage-temperature range Symbol VCC Vin Vin Tj Tstg Value 0 to +3.5 0 to VCC 0.5 to VCC - 1 V 125 -40 to +125 Unit V V V
_C _C
2 (8)
Rev. A1, 19-May-99
Preliminary Information
AA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA A A AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAA A A A A AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA AAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
VCC = 2.8 V at Pin 20
AA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA A A A AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A A A A AAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAA A A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
VCC = 2.9 V at Pin 8
Rev. A1, 19-May-99
Electrical Characteristics PA
Electrical Characteristics VCO
Operating Range
Thermal Resistance
Output -1dB compression
Parameters Supply-voltage range Supply current PA input impedance PA output impedance Operation frequency Input power Output power
Output power VCO
Parameters Supply-voltage range Supply current Frequency bandwidth Sensitivity Phase noise 100 kHz Output impedance TX port Output impedance PLL port Output power TX
Supply voltage Ambient temperature
Junction ambient
"
Parameters
Parameters
50-W termination single ended
50-W termination single ended 50-W termination single ended
Externally defined
Test Conditions / Pins Pin 20 Pin 20 Pin 17 Pin 19
Test Conditions / Pins Pin 8 Pin 8
SSO20
Preliminary Information
Pin 17 Pin 14 Pin 10 Pin 19 Pin 10 Pin 14 PVCOout Symbol VCC ICC ZPAin ZPAout fPA PAin PAout Symbol VCC ICC fBW fS PN PTXout Symbol VCC Tamb Symbol RthJA P1dB Min. 2.7 Min. 2.7 -1 -2 Value 2.7 to 3.3 0 to +70 Value 140 Typ. 2.8 11.5 50 50 Typ. 2.9 6 -16 -0.5 -10 -15 7 -86 50 50 0
U2763B
Max. 3.3
Max. 3.3
1200
1200
2
Unit K/W
Unit V mA MHz MHz/V dBc/Hz
Unit V _C
MHz dBm dBm
dBm
dBm
dBm
Unit V mA
W W
W W
3 (8)
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Comment: The IF signal is limited when divided by two. VCC = 2.9 V at Pin 2
Note:
Electrical Characteristics Divide-by-2 Stage + Mixer
U2763B
4 (8) IF input frequency IF input voltage level IF input impedance (3 (2 IF leakage Noise figure LO leakage 3) Output power Mixer = buffer stage Output power active, Mixer active Parameters Supply-voltage range Supply current 1) Supply current MX turn-on time MX output impedance MX IF input frequency Output frequency Output power 2) IF buffer linear, Mixer active IF) leakage IF) leakage
1) 2) 3)
B2
Including IF buffer Each sideband In mixing mode
2)
Base input MXEN VCC - 0.3 V MXEN 0.3 V Pin 12
50-W termination single ended VIFin = 50 mVrms MXEN < 0.3 V MXCTRL = VCC 50-W termination single ended VIFin = 50 mVrms MXEN < 0.3 V VCTRL = VCC MXCTRL = 0 V 50-W termination single ended MXEN < 0.3 V MXCTRL = open SSB MXout-port, VIFin = 50 mVrms MXout-port, VIFin = 50 mVrms MXout-port, VIFin = 50 mVrms MXout-port, VIFin = 50 mVrms
@ 900 MHz
Test Conditions / Pins Pin 2 MXEN < 0.3 V Pin 2 MXEN VCC-0.3 V Pin 2
Preliminary Information
w v
w
Pin 3
Pin 3
Pin 3
Pin 3
Pin 3
Pin 3
Pin 3
Pin 3
Pin 3
Symbol VCC ISMXon ISMXoff tMXon ZMXout fMXIFin fMXout PMXout
PMXout
PMXout
Lk3IF
Lk2IF
NF LkLO
fIFin VIFin ZIFin
LkIF
Min. 2.7
800
10 40
1 1
Typ. 2.9 9
12.8 50
-55
-35
-45
18 -25
-10
-15
950 -15
2.5 50
Rev. A1, 19-May-99 Max. 3.3 22 1200 22 125 500 MHz mV MHz MHz dBm dBm dBm dBm dB dBm dBm dBm Unit V mA kW kW
mA ms W
U2763B
Internal Pin Configuration
2 V CC 8 V CC
10 1.9 V
1
10 k
9 0.7 V
15 k
13977 13976
Figure 3. Pin 1: Mixer enable Figure 6. Pins 9/11: PLL buffer
2 V CC 2 V CC
3
1.1 V
20
11 12
2.1 V 2.1 V 2 k 2 k
13978
Figure 4. Pin 3: Mixer output
8
V CC
13979
Figure 7. Pins 11/12: IF input
2 10 k 6 7 10 k 100 k 13 1.5 V
V CC
1.5 V 1.5 V
100 k
13975 13974
Figure 5. Pins 6/7: VCO
Figure 8. Pin 13: Control pin for mixer modi
Rev. A1, 19-May-99
5 (8)
Preliminary Information
U2763B
Internal Pin Configuration (continued)
8 V CC 20 14 2.0 V 19 2.0 V V CC
18
0.8 V
13982
Figure 9. Pin 14: Transmit-signal output
13981
Figure 11. Pins 18/19: Power amplifier output
20 V CC
1 k 17 1.6 V
1 k
16 1.6 V
75
13980
Figure 10. Pins 16/17: Power amplifier input
6 (8)
Rev. A1, 19-May-99
Preliminary Information
U2763B
Application Circuit
C13 PA_OUT PA_V CC 100pF C18 100pF 20 19 18 17 L2 (printed) R58 C6 6.8nH 3pF C7 3pF C15 C14 100pF 16 15 100pF C17 12 11 0.01F C22 100pF MX_EN C68 100pF C24 MX_OUT 100pF C30 100pF C38 6.8pF R72 22k D1 BB811 1 2 3 4 5 6 L9 2.7 nH C39 6.8pF R65 100pF 47 7 8 9 10 R62 10 C29 C23 0.01F C25 100pF R64 10 R70 10k
13973
100pF 47
MX_CTRL
14
13
U2763B
VCO_OUT
VCC
VTune
Figure 12. Application circuit
Package Information
Package SSO20
Dimensions in mm
6.75 6.50 5.7 5.3 4.5 4.3
1.30 0.25 0.65 5.85 20 11 0.15 0.05 0.15 6.6 6.3
technical drawings according to DIN specifications 13007
1
10
Rev. A1, 19-May-99
7 (8)
Preliminary Information
U2763B
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify TEMIC Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2594, Fax number: 49 ( 0 ) 7131 67 2423
8 (8)
Rev. A1, 19-May-99
Preliminary Information

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