參數(shù)資料
型號: TDA8046H
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Multi-mode QAM demodulator
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
文件頁數(shù): 33/48頁
文件大?。?/td> 245K
代理商: TDA8046H
1996 Nov 19
33
Philips Semiconductors
Product specification
Multi-mode QAM demodulator
TDA8046
Table 11
I
2
C write parameters; 2-bit values
Equalizer
PRESET
0
1
0
1
0
1
0
1
normal operation
coefficient to zero (main tap to 1)
normal operation
freeze coefficients of DFE part
normal operation
freeze coefficients of FFE part
normal operation
freeze centre tap, no fine AGC
EDFE
EFFE
EFC
[fine AGC (equalizer
freeze centre tap)]
EAR
0
1
0
1
automatic reset switched OFF
automatic reset switched ON
5 taps in FFE part
3 taps in FFE part
FFEL
PARAMETER
BITS
DESCRIPTION
Window size (lock detector)
WS1
0
0
1
1
OUTB
0
0
1
1
CARB
0
0
1
1
CLKB
0
0
1
1
AGCB
0
0
1
1
WS0
0
1
0
1
OUTA
0
1
0
1
CARA
0
1
0
1
CLKA
0
1
0
1
AGCA
0
1
0
1
256 symbols
512 symbols
1024 symbols
2048 symbols
Output format
scheme 1
scheme 2
scheme 3
scheme 4
DAC carrier recovery
(maximum current)
50
μ
A
100
μ
A
150
μ
A
200
μ
A
DAC clock recovery
(maximum current)
50
μ
A
100
μ
A
150
μ
A
200
μ
A
DAC AGC
(maximum current)
50
μ
A
100
μ
A
150
μ
A
200
μ
A
PARAMETER
BIT
VALUE
DESCRIPTION
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