IDTCV128PVG8

IDTCV128 1-TO-12 DIFFERENTIAL CLOCK BUFFER COMMERCIAL TEMPERATURE RANGE 1-TO-12 DIFFERENTIAL CLOCK BUFFER IDTCV128 DESCRIPTION: FEATURES: The CV128 differential buffer complies with Intel DB1200G rev. 0.5, and is designed to work in conjunction with the main clock of CK409, CK410/CK410M and CK410B etc., PLL is off in bypass mode and no clock detect. • Compliant with Intel DB1200G rev. 0.5 • DIF Clock Support − 12differential clock output pairs @ 0.7 V − 50 ps skew performance (same gear) • OE pin Control of All Outputs • 3.3 V Operation • Gear Ratio supporting generation of clocks at a different frequency ratioed from the input. • Split outputs supporting options of 2 outputs @1:1 and remaining 10 pairs at an alternate gear • Pin level OE control of individual outputs • Multiple output frequency options up to 400Mhz as a gear ratio of input clocks of 100-400Mhz • Output is HCSL compatible • SMBus Programmable configurations • PLL Bypass Configurable • SMBus address configurable to allow multiple buffer control in a single control network • Programmable Bandwidth • Glitchfree transition between frequency states • Available in SSOP and TSSOP packages FUNCTIONAL BLOCK DIAGRAM OE_10_11# DIF_0 DIF_0# Output Control OE[9:0]# DIF_1 DIF_1# DIF_2 VTT_PWRGD#/PWRDWN DIF_2# DIF_3 DIF_3# SCL SM Bus Controller SDA DIF_4 Output Buffer DIF_4# DIF_5 DIF_5# DIF_6 DIF_6# SA_2/PLL/BYPASS# DIF_7 CLK_IN DIF_8 DIF_7# DIF_8# CLK_IN# DIF_9 DIF_9# HIGH_BW# DIF_10 PLL DIF_10# DIF_11 DIF_11# The IDT logo is a registered trademark of Integrated Device Technology, Inc. COMMERCIAL TEMPERATURE RANGE JUNE 29, 2007 1 © 2005 Integrated Device Technology, Inc. DSC-6743/A IDTCV128 1-TO-12 DIFFERENTIAL CLOCK BUFFER COMMERCIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description HIGH_BW# 1 56 VDDA CLK_IN 2 55 VSSA VDD 3.3V Logic Input Supply Voltage GND - 0.5 CLK_IN# 3 54 IREF TSTG Storage Temperature SA_0 4 53 OE_10_11# TAMBIENT Ambient Operating Temperature OE_0# 5 52 DIF_11 TCASE Case Temperature DIF_0 6 51 DIF_11# ESD Prot Input ESD Protection DIF_0# 7 50 OE_1# 8 49 DIF_1 9 48 VDD VSS DIF_10 DIF_1# 10 47 DIF_10# VDD 11 46 FS_A VSS 12 45 VTT_PWRGD#/PWRDWN DIF_2 13 44 OE_9# DIF_2# 14 43 DIF_9 OE_2# 15 42 DIF_3 16 41 DIF_9# OE_8# DIF_3# 17 40 DIF_8 OE_3# 18 39 DIF_8# DIF_4 19 38 VDD DIF_4# 20 37 VSS OE_4# 21 36 DIF_7 VDD 22 35 DIF_7# VSS 23 34 OE_7# DIF_5 24 33 DIF_6 DIF_5# 25 32 DIF_6# OE_5# 26 31 OE_6# SA_1 27 30 SA_2/PLL/BYPASS# SDA 28 29 SCL 3.3V Core Supply Voltage Min. VDDA –65 0 Max. Unit 4.6 V 4.6 V +150 °C +70 °C +115 °C 2000 V Human Body Model NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. OE FUNCTIONALITY OE# - Pin 0 0 1 1 SSOP/ TSSOP TOP VIEW 2 OE# - SMBus bit 1 0 1 0 DIF Normal Tristate Tristate Tristate DIFF]# Normal Tristate Tristate Tristate IDTCV128 1-TO-12 DIFFERENTIAL CLOCK BUFFER COMMERCIAL TEMPERATURE RANGE PIN DESCRIPTION Pin Name Type Pin # Description CLK_IN, CLK_IN# IN 2, 3 DIF_[9:0] & DIF_[9:0]# OUT 6, 7, 9, 10, 13, 14, 16, 17, 19, 20, 24, 25, 32, 33, 35, 36, 39, 40, 42, 43 DIF & DIF# [11:10] OUT 47, 48, 51, 52 0.7 V Differential clock outputs, which can be configured to be 1:1 instead of geared. Default is geared same as 0-9 outputs. OE_[9:0]# IN 5, 8, 15, 18, 21, 26, 31, 34, 41, 44 3.3 V LVTTL active LOW input for enabling corresponding differential output clock. Clocks also can be disabled via SMBus registers OE _10_11# IN 53 3.3 V LVTTL active low input for enabling both DIF10 and 11differential output clocks. Clocks also can be disabled via SMBus registers individually. HIGH_BW# IN 1 3.3 V LVTTL input for selecting the PLL bandwidth. 0 = HIGH BW, 1 = LOW BW. SCL IN 29 SMBus slave clock input SDA I/O, OC 28 Open collector SMBus data (1) 0.7v Differential input 0.7 V Differential clock outputs, geared to a ratio of the input clock IREF IN 54 SA_[0:1] IN 4, 27 IN 30 3.3 V LVTTL input for PLLbypass and SMBus address. 0=PLLbypass mode; 1=PLL mode SA_2/PLL_BYPASS# A precision resistor is attached to this pin to set the differential output current 3.3V LVTTL input selecting the address. SA_[2:0] set device SMBus address. FS_A IN 46 3.3V LVTTL input to establish a HIGH (>200Mhz) or LOW frequency(