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參數(shù)資料
| 型號： | CDRM622 |
| 廠商： | Lineage Power |
| 英文描述： | 622 Mbits/s Multichannel Digital Timing Recovery(622M位/秒 多通道數(shù)字定時(shí)恢復(fù)) |
| 中文描述： | 622 Mbits /秒多通道數(shù)字定時(shí)恢復(fù)（622M位/秒多通道數(shù)字定時(shí)恢復(fù)） |
| 文件頁數(shù)： | 11/14頁 |
| 文件大小： | 278K |
| 代理商： | CDRM622 |
Data Sheet
June 1999
CDRM622
622 Mbits/s Multichannel Digital Timing Recovery Macrocell
11
Lucent Technologies Inc.
Electrical and Timing Characteristics
Table 5. Absolute Maximum Ratings
1. At 3.3 V, power is estimated by 300 mW + 50 mW per Rx channel + 10 mW per Tx channel.
Table 6. Recommended Operating Conditions
Table 7. Receiver Specifications
1. 622 Mbits/s scrambled data stream conforming to SONET STS-12 and SDH STM-4 data format using either a PN7 or PN9 sequence.
I
PN7 charateristic is 1 + x
6
+ x
7
.
I
PN9 charateristic is 1 + x
4
+ x
9
.
2. This sequence should not occur more than once per minute.
3. Translates to a frequency change of 500 ppm.
4. A unit interval for 622 Mbits/s data is 1.6075 ns.
Table 8. Transmitter Specifications
Table 9. Synthesizer Specifications
1. External 10 k
resistor to analog ground required.
2. Translates to a frequency change of 500 ppm.
Parameter
Conditions
16 channels at 3.3 V
Min
—
Typ
—
Max
1.25
1
Unit
W
Power Dissipation
Parameter
Conditions
—
Min
3.135
Typ
—
Max
3.465
Unit
V
Supply Voltage
Parameter
Conditions
Min
Typ
Max
Unit
Input Data
1
Stream of Nontransitional 622 Mbits/s
2
Phase Change, Input Signal
Eye Opening
4
Jitter Tolerance
Jitter Tolerance:
250 kHz
25 kHz
2 kHz
—
—
—
0.4
—
—
—
60
100
—
bits
ps
UIp-p
Over a 200 ns time interval
3
—
—
—
—
—
—
—
—
0.6
6
60
UIp-p
UIp-p
UIp-p
Parameter
Conditions
Min
—
Typ
—
Max
0.2
Unit
UIp-p
Output Jitter, Generated
250 kHz to 5 MHz (measured
with a spectrum analyzer)
Parameter
Conditions
Min
Typ
Max
Unit
PLL
1
Loop Bandwidth
Jitter Peaking
Powerup Reset Time
Lock Aquisition Time
Input Reference Clock
Frequency
Frequency Deviation
Phase Change
—
—
—
—
—
—
10
—
—
—
—
—
6
2
—
1
MHz
dB
μs
ms
—
—
77.76
—
—
—
—
—
—
±20
100
MHz
ppm
ps
Over a 200 ns time interval
2
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