參數(shù)資料
型號(hào): TDA8046H
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 消費(fèi)家電
英文描述: Multi-mode QAM demodulator
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
文件頁(yè)數(shù): 28/48頁(yè)
文件大小: 245K
代理商: TDA8046H
1996 Nov 19
28
Philips Semiconductors
Product specification
Multi-mode QAM demodulator
TDA8046
Table 3
Definition of two MSB’s in modulation schemes 1 and 3
Tables 4 and 5 give the output format of the data for semi-serial mode operations.
QUADRANT OF
CURRENTLY
RECEIVED SYMBOL
QUADRANT OF
PREVIOUSLY
RECEIVED SYMBOL
PHASE
CHANGE
(DEGREES)
CURRENT OUTPUT BITS
SCHEME 1
SCHEME 3
b7
b6
b7
b6
A
A
A
A
B
B
B
B
C
C
C
C
D
D
D
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
0
0
1
1
0
0
0
1
1
1
0
0
1
1
1
0
0
0
0
1
1
1
0
0
1
1
1
0
0
0
1
1
0
0
0
1
1
1
0
0
1
1
1
0
0
0
1
1
0
0
1
1
0
0
0
1
1
1
0
0
1
1
1
0
0
270
180
90
90
0
270
180
180
90
0
270
270
180
90
0
Fig.30 Demapping scheme 4; bit allocation: 4-QAM and 16-QAM.
a. Bit allocation for 4-QAM: b7 and b6; b5 = b4 = b3 = b2 = b1 = b0 = 0.
b. Bit allocation for 16-QAM: b7, b6, b5 and b4; b3 = b2 = b1 = b0 = 0.
handbook, full pagewidth
MGG192
1 0
1 1
0 0
0 1
I
Q
b4 b5
b6
b7
0 1
0 0
1 1
1 0
1
0
0
1
I
Q
b6
b7
相關(guān)PDF資料
PDF描述
TDA8060ATS Satellite ZERO-IF QPSK down-converter
TDA8060TS Satellite ZERO-IF QPSK down-converter
TDA8361 Integrated PAL and PAL/NTSC TV processors(集成PAL和PAL/NTSC TV處理器)
TDA8362 Integrated PAL and PAL/NTSC TV processors(集成PAL和PAL/NTSC TV處理器)
TDA8360 Integrated PAL and PAL/NTSC TV processors(集成PAL和PAL/NTSC TV處理器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8050 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:TDA8046H
TDA8050A 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:QPSK transmitter
TDA8050T 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:TDA8046H
TDA8051 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:QPSK receiver
TDA8060ATS 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Satellite ZERO-IF QPSK down-converter