FS6377-01 American Microsystems, Inc., FS6377-01 Datasheet

Page 1

... Programmable power-down of all PLLs and output clock drivers One PLL and two mux/post-divider combinations can be modified by SEL_CD input Tristate outputs for board testing 5V to 3.3V operation Accepts 5MHz to 27MHz crystal resonators Commercial (FS6377-01) and industrial (FS6377-01i) temperature ranges Figure 2: Block Diagram XIN Reference Oscillator XOUT ...

Page 2

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Table 1: Pin Descriptions Key Analog Input Analog Output Digital Input Digital Output Power/Ground Active Low pin PIN TYPE NAME ...

Page 3

... Above a modulus of 56, the Feedback Divider can be programmed to any value up to 2047. Table 2: Feedback Divider Modulus Under 56 M-COUNTER: FBKDIV[10:3] 00000001 00000010 M 00000011 f Counter PD 00000100 00000101 00000110 00000111 3 FS6377-01 FS6377-01 FS6377-01 FS6377-01 Feedback Divider Programming A-COUNTER: FBKDIV[2:0] 000 001 010 011 100 ...

Page 4

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 4.2 Post Divider Muxes As shown in Figure 2, an input mux in front of each Post Divider stage can select from any one of the PLL fre- quencies or the reference frequency ...

Page 5

... The variable ADDR bit allows two different devices to exist on the same bus. Note that every device bus must have a unique address to avoid bus conflicts. The default address sets A2 to one via the pull-up on the ADDR pin. 5 FS6377-01 FS6377-01 FS6377-01 FS6377-01 Acknowledge 2 I C-bus Operation Slave Address ...

Page 6

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 6.2.2 Random Register Write Procedure Random write operations allow the master to directly write to any register. To initiate a write procedure, the R/W bit that is transmitted after the seven-bit device ad- dress is a logic-low ...

Page 7

... A S DEVICE ADDRESS R A DATA 7-bit Receive Data Device Address Acknowledge Repeat START Acknowledge READ Command From device to bus host 7 FS6377-01 FS6377-01 FS6377-01 FS6377- STOP Condition NO Acknowledge A DATA A Data Acknowledge Acknowledge STOP Command A DATA Data Acknowledge NO Acknowledge STOP Command ...

Page 8

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 7.0 Programming Information Table 3: Register Map (Note: All Register Bits are cleared to zero on power-up.) ADDRESS BIT 7 BIT 6 MUX_D2[1:0] BYTE 15 (selected via SEL_CD = 1) ...

Page 9

... M-Counter Value ) F A-Counter Value M-Counter Value 9 FS6377-01 FS6377-01 FS6377-01 FS6377-01 DESCRIPTION POST divider A (see Table 8) POST divider B (see Table 8) POST divider C1 (see Table 8) selected when the SEL_CD pin = 0 POST divider C2 (see Table 8) selected when the SEL_CD pin = 1 POST divider D1 (see Table 8) ...

Page 10

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Table 9: PLL Tuning Bits NAME DESCRIPTION Loop Filter Time Constant A LFTC_A Bit = 0 Short Time Constant (Bit 20) Bit = 1 Long Time Constant ...

Page 11

... Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator SYMBOL CONDITIONS/DESCRIPTION 5V ± 10 3.3V ± 10% Commercial T A Industrial f XIN C Parallel resonant, AT cut XL Standard mode FS6377-01 FS6377-01 FS6377-01 FS6377-01 SYMBOL MIN. MAX -0 -0 -0 ...

Page 12

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Table 13: DC Electrical Specifications Unless otherwise stated 5.0V ± 10%, no load on any output, and ambient temperature range T DD data and are not currently production tested to any specific limits. MIN and MAX characterization data are ...

Page 13

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 MIN. TYP 5.5V -10 -21 O -125 -10 -150 123 1 2.5 3 -10 0 - utpu lta The data in this table represents nominal characterization data only ...

Page 14

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Figure 10: Dynamic Current vs. Output Frequency VDD = 5.0V; Reference Frequency = 27.00MHz; VCO Frequency = 200MHz, C 110 All outputs at the same frequency 100 90 80 All outputs at 200MHz ...

Page 15

... XIN other PLLs active From rising edge to the next rising edge at 2.5V =14.318MHz, N =220, N =63, N =50, all other PLLs XIN active (B=60MHz, C=40MHz, D=14.318MHz) 15 FS6377-01 FS6377-01 FS6377-01 FS6377-01 CLOCK MIN. TYP. (MHz) 0.8 0 400 7 20 1.9 1.6 1.8 1 100 8 1 ...

Page 16

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Table 16: AC Timing Specifications, continued Unless otherwise stated 5.0V ± 10%, no load on any output, and ambient temperature range T DD data and are not currently production tested to any specific limits. MIN and MAX characterization data are ...

Page 17

... SDA, SCL R t SDA, SCL F t SCL HI t SCL LO t su:STO ADDRESS OR DATA CAN DATA VALID CHANGE hd:DAT FS6377-01 FS6377-01 FS6377-01 FS6377-01 3 from typical. STANDARD MODE MIN. MAX. 0 100 4.7 4.7 4.0 250 0 3.5 1000 300 4.0 4.7 4.0 t su:STO STOP su:STO t su:DAT UNITS kHz ...

Page 18

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 9.0 Package Information Table 18: 16-pin SOIC (0.150") Package Dimensions DIMENSIONS INCHES MILLIMETERS MIN. MAX. MIN. MAX. A 0.061 0.068 1.55 1.73 A1 0.004 0.0098 0.102 0.249 A2 0 ...

Page 19

... Outline Package) FS6377- Patent Rights to use these components Standard Specification as defined by Philips. E-mail: tgp@amis.com 19 FS6377-01 FS6377-01 FS6377-01 FS6377-01 OPERATING TEMPERATURE RANGE CONFIGURATION Tape-and-Reel (Commercial (Commercial) Tape-and-Reel - (Industrial) - (Industrial) DESCRIPTION Kit includes: ...

Page 20

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 11.0 Demonstration Board and Software A simple demonstration board and Windows 3.1x/95/98- based software is available from American Microsystems that illustrates the capabilities of the FS6377. The soft- ware can operate under Windows NT but cannot com- municate with the board ...

Page 21

... FS6377 hardware when running on a Windows NT operating system. Do you want to con- tinue anyway, using just the calculation features of this program?” Clicking OK starts the program for calculation only. The opening screen is shown in Figure 14. 21 FS6377-01 FS6377-01 FS6377-01 FS6377-01 11.22.02 ...

Page 22

... FS6377-01 FS6377-01 FS6377-01 FS6377-01 Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC 11.4.1 Example Programming Type a value for the crystal resonator frequency in MHz in the Reference Crystal box. This frequency provides the basis for all of the PLL calculations that follow. ...

Page 23

... Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Programmable 3-PLL Clock Generator IC Figure 19: Board Layout DB25 Signal 2, 13 SCL 3, 12 SDA 8 MODE 5 SEL 4 +5V 25 GND PIN RED 1 WHT 2 GRN 3 BLU 4 BRN 5 BLK FS6377-01 FS6377-01 FS6377-01 FS6377-01 11.22.02 ...