GS2985 Datasheet, PDF (2/45 Pages) Gennum Corporation – Uses standard 27MHz crystal

XTAL-
XTAL+
XTAL_BUF_OUT
XTAL
OSC
Buffer
DDI0
DDI0
DDI1
DDI1
DDI2
DDI2
DDI3
DDI3
Equalizer/
Data Mux
Phase
Frequency
Detector
Phase
Detector
Selectable
Divide
LOS
SPI
Detect
CP_CAP
LF+ KBB
LDO
Retimer
Charge
Pump
VCO
Selectable
Divide
Control
Data
Buffer
Clock/
Data
Buffer
DDO0
DE0_EN
DDO0
DDO1/RCO
DE1_EN
DDO1/RCO
1.8V
LDO
DDI_SEL[1:0] LOS
Revision History
SS[1:0] AUTO/MAN
LOCKED
SD/HD
BYPASS
DATA/CLOCK _{DDO1_DISABLE}
AUTOBYPASS
DATA_MUTE
VDD_1p8
GS2985 Functional Block Diagram
Version ECR
PCN
5
158296
–
4
158127
–
3
158063
–
2
153705
–
1
152592
–
0
152329
–
D
152240
–
C
152042
–
Date
July 2012
May 2012
May 2012
March 2010
September
2009
July 2009
July 2009
June 2009
Changes and/or Modifications
Removed jumper from Figure 5-1:
GS2985 Typical Application Circuit.
Corrected 4.15.3 section to make it
easier to follow and changed to
Semtech Template.
Corrected DRIVER_1 [7:5] Function
Description in Table 4-12: Host Register
Map
Converted to Data Sheet. Updated
Power numbers in Table 2-1: DC
Electrical Characteristics. Added Table
4-5: Suggested LOS Threshold Settings.
Updates to Section 4.15 Host Interface.
Converted document to Preliminary
Data Sheet.
Added Figure 4-2: De-emphasis
Waveform.
Removed ‘Proprietary & Confidential”
from document.
GS2985 Multi-Rate SDI Reclocker with Equalization &
De-emphasis
Data Sheet
36663 - 5
July 2012
2 of 45
Proprietary & Confidential