TLFD500 Datasheet, PDF (16/38 Pages) Texas Instruments – 3.3 V INTEGRATED G.LITE ANALOG FRONT END

TLFD500PN
3.3 V INTEGRATED G.LITE ANALOG FRONT END
SLAS207B – JUNE 1999 – REVISED MAY 2000
PCR-RX1 – programmable gain control register 1 for RX channel PGA3
Address: 00010b
D7
Reserved
D6
Reserved
Contents at reset: 00000000b
D5
D4
D3
RXPGA3[5] RXPGA3[4] RXPGA3[3]
D2
RXPGA3[2]
D1
RXPGA3[1]
D0
RXPGA3[0]
Table 4. PCR-RX1 Gain
D7 D6 D5 D4 D3 D2 D1 D0 HEX VALUE
R
–
–
–
–
–
–
–
–
–
R
–
–
–
–
–
–
–
–
0
0
0
0
0
0
0x00
–
0
0
0
0
0
1
0x01
–
–
0
0
0
0
1
0
0x02
–
–
0
0
0
0
1
1
0x03
–
–
0
0
0
1
0
0
0x04
–
–
0
0
0
1
0
1
0x05
–
–
0
0
0
1
1
0
0x06
–
–
0
0
0
1
1
1
0x07
–
–
0
0
1
0
0
0
0x08
–
–
0
0
1
0
0
1
0x09
–
–
0
0
1
0
1
0
0x0A
–
–
0
0
1
0
1
1
0x0B
–
–
0
0
1
1
0
0
0x0C
–
–
0
0
1
1
0
1
0x0D
–
–
0
0
1
1
1
0
0x0E
–
–
0
0
1
1
1
1
0x0F
–
–
0
1
0
0
0
0
0x10
–
–
0
1
0
0
0
1
0x11
–
–
0
1
0
0
1
0
0x12
–
–
0
1
0
0
1
1
0x13
–
–
0
1
0
1
0
0
0x14
–
–
0
1
0
1
0
1
0x15
–
–
0
1
0
1
1
0
0x16
–
–
0
1
0
1
1
1
0x17
–
–
0
1
1
0
0
0
0x18
–
–
0
1
1
0
0
1
0x19
–
–
0
1
1
0
1
0
0x1A
–
–
0
1
1
0
1
1
0x1B
–
–
0
1
1
1
0
0
0x1C
–
–
0
1
1
1
0
1
0x1D
–
–
0
1
1
1
1
0
0x1E
–
–
0
1
1
1
1
1
0x1F
–
–
1
0
0
0
0
0
0x20
–
–
1
0
0
0
1
1
0x21
–
–
1
0
0
1
0
0
0x22
BIT NAME
Reserved
Reserved
RXPGA3[5:0]
DESCRIPTION
Bit reserved for future use
Bit reserved for future use
0dB
0.25dB
0.50dB
0.75dB
1.00dB
1.25dB
1.50dB
1.75dB
2.00dB
2.25dB
2.50dB
2.75dB
3.00dB
3.25dB
3.50dB
3.75dB
4.00dB
4.25dB
4.50dB
4.75dB
5.00dB
5.25dB
5.50dB
5.75dB
6.00dB
6.25dB
6.50dB
6.75dB
7.00dB
7.25dB
7.50dB
7.75dB
8.00dB
8.25dB
8.50dB
16
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