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參數(shù)資料
| 型號： | TC9446FG |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 16/41頁 |
| 文件大小： | 562K |
| 代理商： | TC9446FG |
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TC9446FG
2005-09-28
23
3)
DIR input part
When you input a signal into DIR, please be sure to input, as shown in Figure 17 through a signal
amplification circuit, a 5 V-3 V conversion circuit, etc.
4)
Lock detection
When VCO circuit locks LOCK terminal and it is operating, “H” level is outputted and “L” level is
outputted at the time of the Ann lock. At the time of the Ann lock, latch operation of reception
recovery data and channel status is stopped, and it holds last value. If the state of a no error
continues the time of the following table, LOCK terminal will be set to “H” level and a reception
recovery will be started.
Table 3
Release Time After the Lock Detection Operation
Sampling Frequency (kHz)
Data of Receiving Demodulation tA (ms)
Channel Status tB (ms)
32
384.0
288.0
44.1
278.6
209.0
48
256.0
192.0
96
128.0
96.0
Figure 18
Internal Operation Timing at Time of Error
tA
Period of error
tB
LOCK Terminal
Data of Receiving
Demodulation
Channel Status
Figure 17
DIR Input Part
3 V
COAXIAL
DIR
(3 V input)
VSS
5 V-3 V level shifter
OPTICAL
VSS
5 V
RX
34
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