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參數資料
| 型號： | GS1535-CFUE3 |
| 廠商： | Gennum Corporation |
| 英文描述： | GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker |
| 中文描述： | GS1535的HD - LINX進程二，商標多速率SDI自動時鐘恢復器 |
| 文件頁數： | 5/22頁 |
| 文件大小： | 238K |
| 代理商： | GS1535-CFUE3 |
GS1535 Data Sheet
18557 - 8
February 2005
5 of 22
24, 25, 26
SS[2:0]
BIDIRECTIONAL
When AUTO/MAN is HIGH, SS[0:2] are outputs, displaying the data rate to
which the PLL has locked.
When AUTO/MAN is LOW, SS[0:2] are inputs, forcing the PLL to lock only to a
selected data rate.
27
ASI/177
LOGIC INPUT
Disables 177Mbps data rate in the AUTO data rate detection circuit. This
prevents a FALSE LOCK to 177Mbps when using DVB/ASI.
28
LD
OUTPUT
LOCK DETECT. HIGH when the PLL is locked.
29
RSVD
RESERVED
DO NOT CONNECT.
33
SD/HD
OUTPUT
This signal is LOW when the reclocker has locked to 1.485Gbps or
1.485/1.001Gbps, and HIGH when the reclocker has locked to 143Mbps,
177Mbps, 270Mbps, 360Mbps, or 540Mbps.
34
KBB
ANALOG INPUT
Controls the loop bandwidth of the PLL. Leave this pin floating for serial
reclocking applications.
36
DDO_MUTE
LOGIC INPUT
Mutes the DDO/DDO outputs, when not in bypass mode.
44, 46
DDO, DDO
OUTPUT
Differential Serial Digital Outputs.
45
DDO_VTT
PASSIVE
Center tap of two 50
on-chip termination resistors between DDO and DDO..
50, 51
XTAL_OUT+,
XTAL_OUT-
OUTPUT
Differential buffered outputs of the reference oscillator.
52, 53
XTAL+, XTAL-
INPUT
Reference crystal input. Connect to the GO1535.
62, 63
LF+, LF-
PASSIVE
Loop filter capacitor connection. (C
LF
= 47nF).
4, 8, 12,16,
32, 35, 37,
43, 49, 54, 64
GND
PASSIVE
Recommended connect to GND.
43
GND_DRV
PASSIVE
Recommended connect to GND.
Table 1-1: Pin Descriptions (Continued)
Pin
Number
Name
Type
Description
SS2
SS1
SS0
DATA RATE
SELECTED/FORCED (Mb/s)
0
0
0
143
0
0
1
177
0
1
0
270
0
1
1
360
1
0
0
540
1
0
1
1483.5/1485
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