參數(shù)資料
型號: 115-T-7121TPA
廠商: Hynix Semiconductor Inc.
英文描述: Digital Satellite Network Interface Module
中文描述: 數(shù)字衛(wèi)星網(wǎng)絡(luò)接口模塊
文件頁數(shù): 8/12頁
文件大?。?/td> 189K
代理商: 115-T-7121TPA
Page 8 of
12
Digital Satellite NIM Specification 1.2
Feb. 2001
Maximum symbol rate consideration @60MHz CLK
Viterbi rate
MAX RATE[Msps]
Notes
1/2
45
due to antialiasing limitation
2/3
45
3/4
40
due to system clock limitation
5/6
36
7/8
34.2
5. Electrical Specification of LINK IC
5.1 BER vs Eb/No characteristics
INNER RATE
Eb/No THRESHOLD
CRITERION
1/2
<< 4.5dB
2/3
<< 5.0dB
3/4
<< 5.5dB
5/6
<< 6.0dB
7/8
<< 6.4dB
Eb/No at BER=2x10
-4
@Viterbi decoder output
6. NIM Configuration
4
6.1 Host Interface
- Only I2C host interface is supported
6.2 WAGC Configuration
- level translation circuit to adjust dynamic range difference between ZIF IC and LINK IC
- Higher value corresponds to higher gain
6.3 I2C Bypass
- Tuner PLL can be accessed via I2C bypass out of LINK IC(internally connected)
4
See Fig. 3 and Fig. 4 for output stream timing diagram.
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