GS2970 Datasheet, PDF (9/145 Pages) Semtech Corporation – 3Gb/s, HD, SD SDI Receiver Complete with SMPTE Audio and Video Processing

1. Pin Out
1.1 Pin Assignment
1
A VBG
2
34
5
6 7 8 9 10
LF
LB_CONT
VCO_
VDD
STAT0
STAT1 IO_VDD PCLK DOUT18 DOUT17
B
A_VDD
PLL_
VDD
RSV
VCO_
GND
STAT2
STAT3 IO_GND DOUT19 DOUT16 DOUT15
C
SDI
A_GND
PLL_
VDD
PLL_
VDD
STAT4
STAT5
RESET
_TRST
DOUT12 DOUT14 DOUT13
D
SDI
A_GND A_GND
PLL_
GND
CORE
_GND
CORE
_VDD
SW_EN
JTAG/
HOST
IO_GND IO_VDD
E ^{SDI_VDD SDI_GND A_GND}
PLL_
GND
CORE
_GND
CORE
_VDD
SDOUT_
TDO
SDIN_
TDI
DOUT10 DOUT11
F
TERM
RSV
A_GND
PLL_
GND
CORE
_GND
CORE
_VDD
CS_
TMS
SCLK_
TCK
DOUT8 DOUT9
G
RSV
RSV RC_BYP RSV
CORE
_GND
CORE
_VDD
SMPTE_
BYPASS
DVB_ASI IO_GND
IO_VDD
H
BUFF_
VDD
BUFF_
GND
AUDIO_
EN/DIS
WCLK
TIM_861
XTAL_
OUT
20bit/
10bit
IOPROC_
EN/DIS
DOUT6
DOUT7
J
SDO
SDO_
EN/DIS
AOUT_1/2
ACLK
AOUT_5/6 XTAL2
IO_GND DOUT1
DOUT4
DOUT5
K
SDO STANDBY AOUT_3/4 AMCLK AOUT_7/8 XTAL1 IO_VDD DOUT0 DOUT2 DOUT3
1.2 Pin Descriptions
Table 1-1: Pin Descriptions
Pin
Number
A1
A2
A3
A4
Name
VBG
LF
LB_CONT
VCO_VDD
Timing
Type
Description
Analog Input
Analog Input
Analog Input
Input Power
Band Gap voltage filter connection.
Loop Filter component connection.
Connection for loop bandwidth control resistor.
POWER pin for the VCO. Connect to 1.2V±5% analog supply
followed by a RC filter (see 5. Application Reference Design). A
105Ω 1% resistor must be used in the RC filter circuit. VCO_VDD is
nominally 0.7V.
GS2970 3Gb/s, HD, SD SDI Receiver Complete with
SMPTE Audio and Video Processing
Data Sheet
47478 - 4
September 2012
9 of 145