73M1903-IVTR/F 查看數據表（PDF） - Teridian Semiconductor Corporation

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73M1903-IVTR/F

Modem Analog Front End

Teridian Semiconductor Corporation 

DS_1903_032

73M1903 Data Sheet

Figure 4: Analog Block Diagram

Table 3: PLL Loop Filter Settings

FL

PLLloop Filter Settings

0

R1=32 kΩ,C1=100 pF,C2=2.5 pF

1

R1=16 kΩ, C1=100 pF,C2=2.5 pF

2.2.1 Control Register (CTRL 11): Address 0Bh

Reset State 12h

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Ndvsr6 Ndvsr5 Ndvsr4 Ndvsr3 Ndvsr2

Bit 1

Ndvsr1

Bit 0

Ndvsr0

Ndvsr[6:0] represents the divisor. If Nrst{2:0] =0 this register is ignored.

2.2.2 Control Register (CTRL 12): Address 0Ch

Reset State 00h

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Nseq7 Nseq6 Nseq5 Nseq4 Nseq3 Nseq2

Bit 1

Nseq1

Bit 0

Nseq0

Nseq[7:0] represents the divisor sequence.

Rev. 2.0

11

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