參數(shù)資料
型號(hào): TDA8046
廠商: NXP Semiconductors N.V.
英文描述: ECONOLINE: RB & RA - Dual Output from a Single Input Rail- Power Sharing on Output- Industry Standard Pinout- 1kVDC & 2kVDC Isolation- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 85%
中文描述: 多模QAM解調(diào)器
文件頁數(shù): 20/48頁
文件大小: 245K
代理商: TDA8046
1996 Nov 19
20
Philips Semiconductors
Product specification
Multi-mode QAM demodulator
TDA8046
Fig.16 Schematic diagram of the output formatter.
handbook, full pagewidth
MGG175
8
DO1 to DO0
CLKSCV
CLKOUT
DO7 to DO0
CLKSCV
CLKOUT
DO7 to DO0
CLKSCV
I
8
Q
DEMAPPING
SCHEMES
1 to 4
MUX
PARALLEL
AND
SEMI-SERIAL
I
2
C-BUS
7.1.10.1
Demapping scheme 1; differential decoding
Fig.17 Demapping scheme 1; bit allocation: 256-QAM.
Bit allocation for 256-QAM: b5, b4, b3, b2, b1 = b0 = 0; b7 and b6 differentially decoded (see Table 3).
handbook, full pagewidth
MGG193
010110
011110
001110
000110
010111
011111
001111
000111
010101
011101
001101
000101
010100
011100
001100
000100
100110
101110
111110
110110
100111
101111
111111
110111
100101
101101
111101
110101
100100
101100
111100
110100
I
Q
A quadrant
b5 b4 b3 b2 b1 b0
010000
011000
001000
000000
010001
011001
001001
000001
010011
011011
001011
000011
010010
011010
001010
000010
100000
101000
111000
110000
100001
101001
111001
110001
100011
101011
111011
110011
100010
101010
111010
110010
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