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ICS932S805C idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 k8 clock chip for serverworks ht2100 servers datasheet 1 recommended application: output features: serverworks ht2100-based systems using amd k8 processors ? 7 - pairs of amd k8 clocks ? 6 - pair of src/pci express* clock ? 3 - 14.318 mhz ref clocks ? 3 - 48mhz clocks ? 2 - pci 33 mhz clocks ? 2 - 25mhz clocks ? spread spectrum for emi reduction ? outputs may be disabled via smbus ? m/n programming via smbus features: pin configuration: x1 1 64 vdd25mhz x2 2 63 25mhz_0 vddref 3 62 25mhz_1 fs0/ref0 4 61 gnd25mhz fs1/ref1 5 60 spread_en fs2/ref2 6 59 cpuclk8t6 gndref 7 58 cpuclk8c6 vdd48 8 57 cpuclk8t5 48mhz_0 9 56 cpuclk8c5 48mhz_1 10 55 vddcpu 48mhz_211 54gnd gnd4812 53cpuclk8t4 sclk 13 52 cpuclk8c4 sdata 14 51 cpuclk8t3 vddpci 15 50 cpuclk8c3 **fs3/pciclk0 16 49 vddcpu pciclk117 48gnd gndpci 18 47 cpuclk8t2 pd# 19 46 cpuclk8c2 gnd 20 45 cpuclk8t1 vdda 21 44 cpuclk8c1 gnda 22 43 cpuclk8t0 iref 23 42 cpuclk8c0 vdda 24 41 vddcpu srcclkt0 25 40 gnd srcclkc0 26 39 vddsrc srcclkt1 27 38 srcclkt5 srcclkc1 28 37 srcclkc5 srcclkt2 29 36 srcclkt4 srcclkc2 30 35 srcclkc4 vddsrc 31 34 srcclkt3 gndsrc 32 33 srcclkc3 64-tssop * internal pull-up resistor ** internal pull-down resistor 932s805 vdd gnd 8 12 48mhz clocks 64 61 25mhz clocks 15 18 33 mhz pci clocks 21,24 22 iref, analog core 31, 39 32 src clocks 55, 49, 41 54, 48, 40 k8 cpu clocks 3 7 ref clocks, xtal osc. pin number description functionality power groups bit2 fs2 bit1 fs1 bit0 fs0 cpu (mhz) 000 hi-z 001 x/4 0 1 0 180.00 0 1 1 220.00 1 0 0 100.00 1 0 1 133.33 1 1 0 166.67 1 1 1 200.00
ICS932S805C k8 clock chip for serverworks ht2100 servers 2 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 pin description pin # pin name type description 1 x1 in crystal input, nominally 14.318mhz. 2 x2 out crystal output, nominally 14.318mhz 3 vddref pwr ref, xtal power supply, nominal 3.3v 4 fs0/ref0 i/o frequency select latch input pin / 14.318 mhz reference clock. 5 fs1/ref1 i/o frequency select latch input pin / 14.318 mhz reference clock. 6 fs2/ref2 i/o frequency select latch input pin / 14.318 mhz reference clock. 7 gndref pwr ground pin for the ref outputs. 8 vdd48 pwr power pin for the 48mhz output.3.3v 9 48mhz_0 out 48mhz clock output. 10 48mhz_1 out 48mhz clock output. 11 48mhz_2 out 48mhz clock output. 12 gnd48 pwr ground pin for the 48mhz outputs 13 sclk in clock pin of smbus circuitry, 5v tolerant. 14 sdata i/o data pin for smbus circuitry, 3.3v tolerant. 15 vddpci pwr power supply for pci clocks, nominal 3.3v 16 **fs3/pciclk0 i/o frequency select latch input pin / 3.3v pci clock output. 17 pciclk1 out pci clock output. 18 gndpci pwr ground pin for the pci outputs 19 pd# in asynchronous active low input pin used to power down the device. the internal clocks are disabled and the vco and the crystal are stopped. 20 gnd pwr ground pin. 21 vdda pwr 3.3v power for the pll core. 22 gnda pwr ground pin for the pll core. 23 iref out this pin establishes the reference current for the differential current-mode output pairs. this pin requires a fixed precision resistor tied to ground in order to establish the appropriate current. 475 ohms is the standard value. 24 vdda pwr 3.3v power for the pll core. 25 srcclkt0 out true clock of differential src clock pair. 26 srcclkc0 out complement clock of differential src clock pair. 27 srcclkt1 out true clock of differential src clock pair. 28 srcclkc1 out complement clock of differential push-pull src clock pair. 29 srcclkt2 out true clock of differential src clock pair. 30 srcclkc2 out complement clock of differential src clock pair. 31 vddsrc pwr supply for src clocks, 3.3v nominal 32 gndsrc pwr ground pin for the src outputs
ICS932S805C k8 clock chip for serverworks ht2100 servers 3 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 pin # pin name type description 33 srcclkc3 out complement clock of differential src clock pair. 34 srcclkt3 out true clock of differential src clock pair. 35 srcclkc4 out complement clock of differential src clock pair. 36 srcclkt4 out true clock of differential src clock pair. 37 srcclkc5 out complement clock of differential src clock pair. 38 srcclkt5 out true clock of differential src clock pair. 39 vddsrc pwr supply for src clocks, 3.3v nominal 40 gnd pwr ground pin. 41 vddcpu pwr supply for cpu clocks, 3.3v nominal 42 cpuclk8c0 out complementary clock of differential 0.8v push-pull k8 pair. 43 cpuclk8t0 out true clock of differential 0.8v push-pull k8 pair. 44 cpuclk8c1 out complementary clock of differential 0.8v push-pull k8 pair. 45 cpuclk8t1 out true clock of differential 0.8v push-pull k8 pair. 46 cpuclk8c2 out complementary clock of differential 0.8v push-pull k8 pair. 47 cpuclk8t2 out true clock of differential 0.8v push-pull k8 pair. 48 gnd pwr ground pin. 49 vddcpu pwr supply for cpu clocks, 3.3v nominal 50 cpuclk8c3 out complementary clock of differential 0.8v push-pull k8 pair. 51 cpuclk8t3 out true clock of differential 0.8v push-pull k8 pair. 52 cpuclk8c4 out complementary clock of differential 0.8v push-pull k8 pair. 53 cpuclk8t4 out true clock of differential 0.8v push-pull k8 pair. 54 gnd pwr ground pin. 55 vddcpu pwr supply for cpu clocks, 3.3v nominal 56 cpuclk8c5 out complementary clock of differential 0.8v push-pull k8 pair. 57 cpuclk8t5 out true clock of differential 0.8v push-pull k8 pair. 58 cpuclk8c6 out complementary clock of differential 0.8v push-pull k8 pair. 59 cpuclk8t6 out true clock of differential 0.8v push-pull k8 pair. 60 spread_en in asynchronous, active high input to enable spread spectrum functionality. 61 gnd25mhz pwr ground pin for the 25mhz outputs 62 25mhz_1 out 25mhz clock output, 3.3v 63 25mhz_0 out 25mhz clock output, 3.3v 64 vdd25mhz pwr power supply for 25mhz clocks, 3.3v nominal. pin description (continued)
ICS932S805C k8 clock chip for serverworks ht2100 servers 4 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 general description the ics932s805 is a main clock synthesizer chip that, when paired with ics9db108, provides all clocks required by serverworks ht2100-based servers. an smbus interface allows full control of the device. block diagram i r e f pciclk(1:0) control logic xtal osc. cpuclk8(6:0) fixed pll 48mhz(2:0) r e f ( 2 : 0 ) x1 x2 pci33 div cpu div s data sclk fs(3:0) spread_en src div1 srcclk(5:0) pd# 25mhz(1:0) 25m div 25mhz pll cpu/src/ pci pll zo = 50 ohms zo = 55 ohms zo = 60 ohms 48mhz 1 load 1 15 24 30 48mhz 2 load 2 4.7 15 20 25mhz 1 load 1 15 24 30 25mhz 2 load 2 4.7 15 20 pci 1 load 1 15 24 30 pci 2 load 2 4.7 15 20 ref 1 load 1 15 24 30 ref 2 load 2 4.7 15 20 number of loads on board series resistor for pro p er termination single-ended terminations single-ended out p ut stren g th
ICS932S805C k8 clock chip for serverworks ht2100 servers 5 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 cpu divider ratios bit00011011msb 00 0000 4 0100 8 1000 16 1100 32 01 0001 3 0101 6 1001 12 1101 24 10 0010 5 0110 10 1010 20 1110 40 11 0011 15 0111 30 1011 60 1111 120 lsb address div address div address div address div pci divider ratios bit00011011msb 00 0000 4 0100 8 1000 16 1100 32 01 0001 3 0101 6 1001 12 1101 24 10 0010 5 0110 10 1010 20 1110 40 11 0011 15 0111 30 1011 60 1111 120 lsb address div address div address div address div src divider ratios bit00011011msb 00 0000 2 0100 4 1000 8 1100 16 01 0001 3 0101 6 1001 12 1101 24 10 0010 5 0110 10 1010 20 1110 40 11 0011 7 0111 14 1011 28 1111 56 lsb address div address div address div address div divider (3:2) divider (1:0) divider (3:2) divider (1:0) divider (3:2) divider (1:0)
ICS932S805C k8 clock chip for serverworks ht2100 servers 6 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 general smbus serial interface information how to write: ? controller (host) sends a start bit. ? controller (host) sends the write address d2 (h) ? ics clock will acknowledge ? controller (host) sends the begining byte location = n ? ics clock will acknowledge ? controller (host) sends the data byte count = x ? ics clock will acknowledge ? controller (host) starts sending byte n through byte n + x -1 ? ics clock will acknowledge each byte one at a time ? controller (host) sends a stop bit how to read: ? controller (host) will send start bit. ? controller (host) sends the write address d2 (h) ? ics clock will acknowledge ? controller (host) sends the begining byte location = n ? ics clock will acknowledge ? controller (host) will send a separate start bit. ? controller (host) sends the read address d3 (h) ? ics clock will acknowledge ? ics clock will send the data byte count = x ? ics clock sends byte n + x -1 ? ics clock sends byte 0 through byte x (if x (h) was written to byte 8) . ? controller (host) will need to acknowledge each byte ? controllor (host) will send a not acknowledge bit ? controller (host) will send a stop bit ics (slave/receiver) t wr ack ack ack ack ack p byte n + x - 1 data byte count = x beginning byte n stop bit x byte index block write operation slave address d2 (h) beginning byte = n write start bit controller (host) t start bit wr write rt repeat start rd read beginning byte n byte n + x - 1 n not acknowledge pstop bit ics (slave/receiver) controller (host) x byte ack ack data byte count = x ack slave address d3 (h) index block read operation slave address d2 (h) beginning byte = n ack ack
ICS932S805C k8 clock chip for serverworks ht2100 servers 7 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 smbus table: frequency select and spread control register pin # name control function t yp e0 1pwd bit 7 fs source latched input or smbus frequency select rw latched inputs smbus 0 bit 6 spread spectrum enable spread enable for cpu, src and pci outputs. setting spread_en pin to '1', forces spread on and overides this bit. rw off on 0 bit 5 reserved reserved rw reserved reserved 0 bit 4 reserved reserved rw reserved reserved 0 bit 3 fs3 freq select bit 3 rw latched bit 2 fs2 freq select bit 2 rw latched bit 1 fs1 freq select bit 1 rw latched bit 0 fs0 freq select bit 0 rw latched smbus table: output control register pin # name control function t yp e0 1pwd bit 7 ref2 output enable rw disable (low) enable 1 bit 6 ref1 output enable rw disable (low) enable 1 bit 5 ref0 output enable rw disable (low) enable 1 bit 4 pciclk1 output enable rw disable (low) enable 1 bit 3 pciclk0 output enable rw disable (low) enable 1 bit 2 48mhz_2 output enable rw disable (low) enable 1 bit 1 48mhz_1 output enable rw disable (low) enable 1 bit 0 48mhz_0 output enable rw disable (low) enable 1 smbus table: output control register pin # name control function t yp e0 1pwd bit 7 reserved reserved rw reserved reserved 0 bit 6 cpuclk8(6) rw disable enable 1 bit 5 cpuclk8(5) rw disable enable 1 bit 4 cpuclk8(4) rw disable enable 1 bit 3 cpuclk8(3) rw disable enable 1 bit 2 cpuclk8(2) rw disable enable 1 bit 1 cpuclk8(1) rw disable enable 1 bit 0 cpuclk8(0) rw disable enable 1 - - - - - 4 6 b y te 1 5 17 10 9 16 11 b y te 2 - 47/46 45/44 59/58 57/56 53/52 51/50 43/42 b y te 0 - - - output enable when disabled cpuclkt = 0 cpuclkc = 1 see cpu frequency select table
ICS932S805C k8 clock chip for serverworks ht2100 servers 8 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 smbus table: output control register pin # name control function t yp e0 1pwd bit 7 srcclk pd srcclk power down drive mode rw driven hi-z 0 bit 6 reserved reserved rw reserved reserved 0 bit 5 srcclk5 output enable rw disable (hi-z) enable 1 bit 4 srcclk4 output enable rw disable (hi-z) enable 1 bit 3 srcclk3 output enable rw disable (hi-z) enable 1 bit 2 srcclk2 output enable rw disable (hi-z) enable 1 bit 1 srcclk1 output enable rw disable (hi-z) enable 1 bit 0 srcclk0 output enable rw disable (hi-z) enable 1 smbus table: drive strength control register pin # name control function t yp e0 1pwd bit 7 ref2 drive stren g th select rw 1 load 2 loads 1 bit 6 ref1 drive stren g th select rw 1 load 2 loads 1 bit 5 ref0 drive stren g th select rw 1 load 2 loads 1 bit 4 pciclk1 drive stren g th select rw 1 load 2 loads 1 bit 3 pciclk0 drive stren g th select rw 1 load 2 loads 1 bit 2 48mhz_2 drive stren g th select rw 1 load 2 loads 1 bit 1 48mhz_1 drive stren g th select rw 1 load 2 loads 1 bit 0 48mhz_0 drive strength select rw 1 load 2 loads 1 smbus table: src frequency select register pin # name control function t yp e0 1pwd bit 7 25mhz_1 output enable rw disable (low) enable 1 bit 6 25mhz_0 output enable rw disable (low) enable 1 bit 5 25mhz_1 drive stren g th select rw 1 load 2 loads 1 bit 4 25mhz_0 drive stren g th select rw 1 load 2 loads 1 bit 3 reserved reserved rw reserved reserved 0 bit 2 reserved reserved rw reserved reserved 0 bit 1 reserved reserved rw reserved reserved 0 bit 0 reserved reserved rw reserved reserved 0 smbus table: device id register pin # name control function t yp e0 1pwd bit 7 devid 7 device id msb r - - 1 bit 6 devid 6 device id 6 r - - 0 bit 5 devid 5 device id 5 r - - 0 bit 4 devid 4 device id4 r - - 0 bit 3 devid 3 device id3 r - - 0 bit 2 devid 2 device id2 r - - 1 bit 1 devid 1 device id1 r - - 0 bit 0 devid 0 device id lsb r - - 1 5 4 11 10 - 9 b y te 6 17 16 b y te 3 src clks - 38/37 36/35 34/33 29/30 27/28 25/26 b y te 4 6 - - - - - - - b y te 5 62 63 62 63 - - - -
ICS932S805C k8 clock chip for serverworks ht2100 servers 9 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 smbus table: vendor id register pin # name control function t yp e0 1pwd bit 7 rid3 r - - x bit 6 rid2 r - - x bit 5 rid1 r - - x bit 4 rid0 r --x bit 3 vid3 r --0 bit 2 vid2 r --0 bit 1 vid1 r --0 bit 0 vid0 r - - 1 smbus table: byte count register pin # name control function t yp e0 1pwd bit 7 bc7 rw 0 bit 6 bc6 rw 0 bit 5 bc5 rw 0 bit 4 bc4 rw 0 bit 3 bc3 rw 1 bit 2 bc2 rw 0 bit 1 bc1 rw 0 bit 0 bc0 rw 1 smbus table: reserved register pin # name control function t yp e0 1pwd bit 7 reserved reserved rw reserved reserved 0 bit 6 reserved reserved rw reserved reserved 0 bit 5 reserved reserved rw reserved reserved 0 bit 4 reserved reserved rw reserved reserved 0 bit 3 reserved reserved rw reserved reserved 0 bit 2 reserved reserved rw reserved reserved 0 bit 1 reserved reserved rw reserved reserved 0 bit 0 reserved reserved rw reserved reserved 0 smbus table: m/n programming enable pin # name control function t yp e0 1pwd bit 7 m/n_en cpu pll m/n pro g rammin g enable rw disable enable 0 bit 6 reserved reserved rw - - 0 bit 5 reserved reserved rw - - 0 bit 4 reserved reserved rw - - 0 bit 3 reserved reserved rw - - 0 bit 2 reserved reserved rw - - 0 bit 1 reserved reserved rw - - 0 bit 0 reserved reserved rw - - 0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - b y te 1 0 b y te 8 b y te 7 b y te 9 - writing to this register will configure how many bytes will be read back, default is 9 bytes. revision id vendor id (0001 = ics) byte count programming b(7:0)
ICS932S805C k8 clock chip for serverworks ht2100 servers 10 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 bytes 11:14 are reserved smbus table: cpu/src frequency control register pin # name control function t yp e0 1pwd bit 7 n div8 n divider prog bit 8 rw x bit 6 n div9 n divider prog bit 9 rw x bit 5 m div5 rw x bit 4 m div4 rw x bit 3 m div3 rw x bit 2 m div2 rw x bit 1 m div1 rw x bit 0 m div0 rw x smbus table: cpu/src frequency control register pin # name control function t yp e0 1pwd bit 7 n div7 rw x bit 6 n div6 rw x bit 5 n div5 rw x bit 4 n div4 rw x bit 3 n div3 rw x bit 2 n div2 rw x bit 1 n div1 rw x bit 0 n div0 rw x smbus table: cpu/src spread spectrum control register pin # name control function t yp e0 1pwd bit 7 ssp7 rw x bit 6 ssp6 rw x bit 5 ssp5 rw x bit 4 ssp4 rw x bit 3 ssp3 rw x bit 2 ssp2 rw x bit 1 ssp1 rw x bit 0 ssp0 rw x - - - - - - b y te 17 b y te 16 - - - - - - - - - - b y te 15 - - - - - - - - spread spectrum programming bit(7:0) these spread spectrum bits in byte 17 and 18 will program the spread pecentage of cpu and src outputs. n divider programming byte12 bit(7:0) and byte11 bit(7:6) m divider programming bit (5:0) the decimal representation of m and n divier in byte 15 and 16 will configure the cpu vco frequency. default at power up = latch- in or byte 0 rom table. vco frequency = 14.318 x [ndiv(9:0)+8] / [mdiv(5:0)+2] the decimal representation of m and n divier in byte 15 and 16 will configure the cpu vco frequency. default at power up = latch- in or byte 0 rom table. vco frequency = 14.318 x [ndiv(9:0)+8] / [mdiv(5:0)+2]
ICS932S805C k8 clock chip for serverworks ht2100 servers 11 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 smbus table: cpu/src spread spectrum control register pin # name control function t yp e0 1pwd bit 7 reserved reserved r - - 0 bit 6 ssp14 rw x bit 5 ssp13 rw x bit 4 ssp12 rw x bit 3 ssp11 rw x bit 2 ssp10 rw x bit 1 ssp9 rw x bit 0 ssp8 rw x smbus table: src spread spectrum control register pin # name control function t yp e0 1pwd bit 7 reserved reserved r - - 0 bit 6 reserved reserved r - - 0 bit 5 reserved reserved r - - 0 bit 4 reserved reserved r - - 0 bit 3 reserved reserved r - - 0 bit 2 reserved reserved r - - 0 bit 1 reserved reserved r - - 0 bit 0 reserved reserved r - - 0 smbus table: programmable output divider register pin # name control function t yp e0 1pwd bit 7 cpudiv3 rw x bit 6 cpudiv2 rw x bit 5 cpudiv1 rw x bit 4 cpudiv0 rw x bit 3 reserved reserved r - - 0 bit 2 reserved reserved r - - 0 bit 1 reserved reserved r - - 0 bit 0 reserved reserved r - - 0 smbus table: programmable output divider register pin # name control function t yp e0 1pwd bit 7 33mhzdiv3 rw x bit 6 33mhzdiv2 rw x bit 5 33mhzdiv1 rw x bit 4 33mhzdiv0 rw x bit 3 src_div3 rw x bit 2 src_div2 rw x bit 1 src_div1 rw x bit 0 src_div0 rw x smbustable: reserved regsiter byte 21 is reserved do not write this register! - - - - b y te 18 b y te 18 - - - - - - - - - b y te 19 - - - - - - - - - - b y te 20 - - - - - - - - - 33mhz divider ratio programming bits 33mhz divider ratio table see cpu divider ratios table spread spectrum programming bit(14:8) src divider ratio table cpu divider ratio programming bits src_ divider ratio programming bits these spread spectrum bits in byte 17 and 18 will program the spread pecentage of cpu and src outputs.
ICS932S805C k8 clock chip for serverworks ht2100 servers 12 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 absolute maximum ratings electrical characteristics - input/supply/common output parameters t a = 0 - 70c; supply voltage v dd = 3.3 v +/-5% parameter symbol conditions min typ max units notes input high voltage v ih 3.3 v +/-5% 2 v dd + 0.3 v 1 input low voltage v il 3.3 v +/-5% v ss - 0.3 0.8 v 1 input high current i ih v in = v dd -5 5 ua 1 i il1 v in = 0 v; inputs with no pull-up resistors -5 ua 1 i il2 v in = 0 v; inputs with pull-up resistors -200 ua 1 operating supply current i dd3.3op full active, c l = full load; 258 350 ma operating current i dd3.3op all outputs driven tbd ma all diff pairs driven tbd ma all differential pairs tri-stated tbd ma input frequenc y 3 f i v dd = 3.3 v 14.318 mhz 3 pin inductance 1 l p in 7nh1 c in logic inputs 5 pf 1 c ou t output pin capacitance 6 pf 1 c inx x1 & x2 pins 5 pf 1 clk stabilization 1,2 t stab from v dd power-up or de-assertion of pd# to 1st clock 3ms1,2 modulation frequenc y trian g ular modulation 30 33 khz 1 smbus voltage v d d 2.7 5.5 v 1 low-level output voltage v ol @ i pullup 0.4 v 1 u rrent sinking at v ol = 0.4 i pullup 4ma1 sclk/sdata clock/data rise time 3 t ri2c (max vil - 0.15) to (min vih + 0.15) 1000 ns 1 sclk/sdata clock/data fall time 3 t fi 2c (min vih + 0.15) to (max vil - 0.15) 300 ns 1 1 guaranteed by design and characterization, not 100% tested in production. 2 see timing diagrams for timing requirements. 3 input frequenc y should be measured at the refout pin and tuned to ideal 14.31818mhz to meet ppm frequenc y accurac y on pll outputs. input low current powerdown current i dd3.3pd input capacitance 1 symbol parameter min max units vdd_a 3.3v core supply voltage - vdd + 0.5v v vdd_in 3.3v logic input supply voltage gnd - 0.5 vdd + 0.5v v ts storage temperature -65 150 c tambient ambient operating temp 0 70 c tc case temperature - 115 c esd prot input esd protection human body model 2000 - v
ICS932S805C k8 clock chip for serverworks ht2100 servers 13 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 electrical characteristics - k8 push pull differential pair t a = 0 - 70c; v dd = 3.3 v +/-5%; c l =amd64 processor test load parameter symbol conditions min typ max units notes risin g ed g e rate v / t 210v/ns1 falling edge rate v / t 210v/ns1 differential voltage v diff 0.4 1.25 2.3 v 1 change in v diff_dc ma g nitude v diff -150 150 mv 1 common mode voltage v cm 1.05 1.25 1.45 v 1 change in common mode volta g e v cm -200 200 mv 1 jitter, cycle to cycle t jcyc-cyc measurement from differential wavefrom. maximum difference of cycle time between 2 adjacent cycles. 0 100 200 ps 1 jitter, accumulated t ja measured using the jit2 software package with a tek 7404 scope. tie (time interval error) measurement technique: sample resolution = 50 ps, sam p le duration = 10 s -1000 1000 1,2,3 duty cycle d t3 measurement from differential wavefrom 45 53 % 1 output impedance r on average value during switching transition. used for determining series termination value. 15 35 55 ? 1 group skew t src-skew measurement from differential wavefrom 250 ps 1 1 guaranteed b y desi g n and characterization, not 100% tested in p roduction. 2 all accumulated j itter s p ecifications are g uaranteed assumin g that ref is at 14.31818mhz 3 s p read s p ectrum is off measured at the amd64 processor's test load. 0 v +/- 400 mv (differential measurement) measured at the amd64 processor's test load. (single-ended measurement)
ICS932S805C k8 clock chip for serverworks ht2100 servers 14 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 electrical characteristics - src 0.7v current mode differential pair t a = 0 - 70c; v dd = 3.3 v +/-5%; c l =2pf, r s =33.2 , r p =49.9 , ref = 475 parameter symbol conditions min typ max units notes current source output im p edance zo v o = v x 3000 1 volta g e hi g hvhi g h 660 850 1,3 voltage low vlow -150 150 1,3 max volta g evovs 1150 1 min volta g e vuds -300 1 crossin g volta g e ( abs ) vcross ( abs ) 250 350 550 mv 1 crossin g volta g e ( var ) d-vcross variation of crossin g over all ed g es 12 140 mv 1 long accuracy ppm see tperiod min-max values -300 300 ppm 1,2 75.00 mhz nominal 8.5684 8.5714 8.5744 ns 2 75.00 mhz s p read 8.5684 8.6244 ns 2 100.00 mhz nominal 9.9970 10.0000 10.0030 ns 2 100.00 mhz s p read 9.9970 10.0530 ns 2 116.67 mhz nominal 13.3303 13.3333 13.3363 ns 2 116.67 mhz s p read 13.3303 13.3863 ns 2 133.33 mhz nominal 7.4972 7.5002 7.5032 ns 2 133.33 mhz s p read 7.4972 7.5532 ns 2 absolute min p eriod tabsmin @100.00mhz nominal/s p read 9.8720 ns 1,2 rise time t r v ol = 0.175v, v oh = 0.525v 175 700 ps 1 fall time t f v oh = 0.525v v ol = 0.175v 175 700 ps 1 rise time variation d-t r 30 125 ps 1 fall time variation d-t f 30 125 ps 1 duty cycle d t3 measurement from differential wavefrom 45 55 % 1 group skew t src-skew measurement from differential wavefrom 250 ps jitter, cycle to cycle t jcyc-cyc measurement from differential wavefrom 125 ps 1 1 guaranteed b y desi g n and characterization, not 100% tested in p roduction. 2 all lon g term accurac y and clock period s p ecifications are g uaranteed assumin g that ref is at 14.31818mhz 3 i ref = v dd /(3xr r ). for r r = 475 (1%), i ref = 2.32ma. i oh = 6 x i ref and v oh = 0.7v @ z o =50 . statistical measurement on single ended signal using oscilloscope math function. mv measurement on single ended signal using absolute value. mv average period tperiod
ICS932S805C k8 clock chip for serverworks ht2100 servers 15 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 t a = 0 - 70c; vdd=3.3v +/-5%; c l = 5 pf (unless otherwise specified) parameter symbol conditions min typ max units notes pci long accuracy ppm see tperiod min-max values -300 300 ppm 1,2 33.33mhz out p ut nominal 29.9910 30.0090 ns 2 33.33mhz out p ut s p read 29.9910 30.1598 ns 2 25mhz lon g accurac y pp msee t p eriod min-max values -100 100 ns 2 25mhz clock period t period 25mhz output nominal 0.0000 0.0000 ns 2 output high voltage v oh i oh = -1 ma 2.4 v 1 output low voltage v ol i ol = 1 ma 0.55 v 1 v oh @min = 1.0 v -33 ma 1 v oh @ max = 3.135 v -33 ma 1 v ol @ min = 1.95 v 30 ma 1 v ol @ max = 0.4 v 38 ma 1 ed g e rate v / t risin g ed g e rate 1 4 v/ns 1 ed g e rate v / t fallin g ed g e rate 1 4 v/ns 1 duty cycle d t1 v t = 1.5 v 45 55 % 1 pci skew t sk1 v t = 1.5 v 250 ps 1 25mhz skew t sk1 v t = 1.5 v 250 ps 1 jitter, cycle to cycle t jcyc-cyc v t = 1.5 v 250 ps 1 1 guaranteed b y desi g n and characterization, not 100% tested in p roduction. 2 all lon g term accurac y and clock period s p ecifications are g uaranteed assumin g that ref is at 14.31818mhz electrical characteristics - 33 mhz pciclk, 25mhz outputs pci clock period t period output high current i oh output low current i ol electrical characteristics - 48mhz t a = 0 - 70c; v dd = 3.3 v +/-5%; c l = 5 pf (unless otherwise specified) parameter symbol conditions min typ max units notes lon g accurac y pp msee t p eriod min-max values -100 100 pp m1,2 clock period t period 48.00mhz output nominal 20.8257 20.8340 ns 2 output high voltage v oh i oh = -1 ma 2.4 v 1 output low voltage v ol i ol = 1 ma 0.55 v 1 v oh @ min = 1.0 v -33 ma 1 v oh @ max = 3.135 v -33 ma 1 v ol @min = 1.95 v 30 ma 1 v ol @ max = 0.4 v 38 ma 1 ed g e rate v / t risin g ed g e rate 1 2 v/ns 1 ed g e rate v / t fallin g ed g e rate 1 2 v/ns 1 duty cycle d t1 v t = 1.5 v 45 55 % 1 group skew t sk1 v t = 1.5 v 250 ps 1 jitter, cycle to cycle t jcyc-cyc v t = 1.5 v 150 ps 1 1 guaranteed b y desi g n and characterization, not 100% tested in p roduction. 2 all lon g term accurac y and clock period s p ecifications are g uaranteed assumin g that ref is at 14.31818mhz output low current i ol output high current i oh
ICS932S805C k8 clock chip for serverworks ht2100 servers 16 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 electrical characteristics - ref-14.318mhz t a = 0 - 70c; v dd = 3.3 v +/-5%; c l = 5 pf (unless otherwise specified) parameter symbol conditions min typ max units notes lon g accurac y pp msee t p eriod min-max values -300 300 pp m1 clock period t period 14.318mhz output nominal 69.8270 69.8550 ns 2 output high voltage v oh i oh = -1 ma 2.4 v 1 output low voltage v ol i ol = 1 ma 0.4 v 1 output high current i oh v oh @min = 1.0 v, v oh @max = 3.135 v -29 -23 ma 1 output low current i ol v ol @min = 1.95 v, v ol @max = 0.4 v 29 27 ma 1 ed g e rate v / t risin g ed g e rate 1 2 v/ns 1 ed g e rate v / t fallin g ed g e rate 1 2 v/ns 1 skew t sk1 v t = 1.5 v 500 ps 1 duty cycle d t1 v t = 1.5 v 45 55 % 1 jitter, cycle to cycle t jcyc-cyc v t = 1.5 v 1000 ps 1 1 guaranteed b y desi g n and characterization, not 100% tested in p roduction. 2 all lon g term accurac y and clock period s p ecifications are g uaranteed assumin g that ref is at 14.31818mhz
ICS932S805C k8 clock chip for serverworks ht2100 servers 17 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 shared pin operation - input/output pins the i/o pins designated by (input/output) on the ics932s805 serve as dual signal functions to the device. during initial power-up, they act as input pins. the logic level (voltage) that is present on these pins at this time is read and stored into a 5-bit internal data latch. at the end of power-on reset, (see ac characteristics for timing values), the device changes the mode of operations for these pins to an output function. in this mode the pins produce the specified buffered clocks to external loads. to program (load) the internal configuration register for these pins, a resistor is connected to either the vdd (logic 1) power supply or the gnd (logic 0) voltage potential. a 10 kilohm (10k) resistor is used to provide both the solid cmos programming voltage needed during the power-up programming period and to provide an insignificant load on the output clock during the subsequent operating period. via to vdd clock trace to load series term. res. programming header via to gnd device pad 2k 8.2k figure 1 shows a means of implementing this function when a switch or 2 pin header is used. with no jumper is installed the pin will be pulled high. with the jumper in place the pin will be pulled low. if programmability is not necessary, than only a single resistor is necessary. the programming resistors should be located close to the series termination resistor to minimize the current loop area. it is more important to locate the series termination resistor close to the driver than the programming resistor.
ICS932S805C k8 clock chip for serverworks ht2100 servers 18 idt ? k8 clock chip for serverworks ht2100 servers 1131d ? 05/04/10 min max min max a -- 1.20 -- .047 a1 0.05 0.15 .002 .006 a2 0.80 1.05 .032 .041 b 0.17 0.27 .007 .011 c 0.09 0.20 .0035 .008 d e e1 6.00 6.20 .236 .244 e l 0.45 0.75 .018 .030 n 0 8 0 8 aaa--0.10--.004 variations min max min max 64 16.90 17.10 .665 .673 10-0039 6.10 mm. bod y , 0.50 mm. pitch tssop ( 240 mil ) ( 20 mil ) symbol in millimeters in inches common dimensions common dimensions see variations see variations 8.10 basic 0.319 basic 0.50 basic 0.020 basic see variations see variations n d mm. d (inch) reference doc.: jedec publication 95, mo-153 index area 12 n d e1 e seating plane a1 a a2 e -c- b c l aaa c ordering information part/order number shipping packaging package temperature 932s805cglf tubes 64-pin tssop 0 to 70 c 932s805cglft tape and reel 64-pin tssop 0 to 70 c ?lf? suffix to the part number are the pb-free configuration and are rohs compliant. ?c? is the device revision designator (w ill not correlate w ith the datasheet revision)
19 ICS932S805C k8 clock chip for serverworks ht2100 servers innovate with idt and accelerate your future networks. contact: www.idt.com for sales 800-345-7015 408-284-8200 fax: 408-284-2775 for tech support 408-284-6578 pcclockhelp@idt.com corporate headquarters integrated device technology, inc. 6024 silver creek valley road san jose, ca 95138 united states 800 345 7015 +408 284 8200 (outside u.s.) asia pacific and japan idt singapore pte. ltd. 1 kallang sector #07-01/06 kolamayer industrial park singapore 349276 phone: 65-6-744-3356 fax: 65-6-744-1764 europe idt europe limited 321 kingston road leatherhead, surrey kt22 7tu england phone: 44-1372-363339 fax: 44-1372-378851 ? 2010 integrated device technology , inc. all rights reserved. product specifications subject to change without notice. idt, ic s, and the idt logo are trademarks of integrated device technology, inc. accelerated thinking is a service mark of integrated device technology, inc. all other br ands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. printed in usa revision history rev. issue date description page # a 2/21/2008 1. corrected byte0 bits 7:6. they are no longer reserved. 2. corrected smbus cpu pll programming registers (moved from bytes 11:14 to bytes 15:18) 8, 11,12 b 2/21/2008 updated maximum value for 48mhz jitter, c y cle to c y cle 15 c 2/23/2009 updated functionality table. 1 d 5/4/2010 added tcase spec. 12

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