73M1903-IVTR/F Maxim Integrated Products, 73M1903-IVTR/F Datasheet - Page 17

• Manufacturer Part Number: 73M1903-IVTR/F
• Description: IC MODEM AFE V.22BIS 20-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of 73M1903-IVTR/F

• Number Of Channels: 2
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Number Of Bits: -

DS_1903_032
Rev. 2.1
Xtal Oscillator
Table 10: Clock Generation Register Settings for Fxtal = 24.000 MHz
Table 11: Clock Generation Register Settings for Fxtal = 25.35 MHz
Fxtal
=8.22857142858
=10.2857142857
=10.9714285714
=13.7142857143
Reg Address
Reg Address
2.4*10/7*3
2.4*10/7*4
FS (KHz)
2.4*8/7*3
2.4*8/7*4
Fs (kHz)
11.2
12.8
14.4
7.2
7.2
8.0
8.4
9.0
9.6
Prescaler
12
NCO
Fref
Figure 5: Clock Generation
DA
DA
DA
DA
DA
DA
3E
8h
02
08
08
08
10
54
8h
92
PFD
Ichp Control
CA 46 1C 3E C5
EF 30 15 1A C4
2C
EF 41 19 10 C4
EF 42 1C 1E C4
EF 43 1E 7E C6
A9
EF 53 21 1A C4
EF 45 26 14 C4
8C
9h Ah Bh Ch Dh*
72
66
66
9h
F4
Dn
Up
Kd
Loop Filter Control
VCO Locked
31 13 10 C4
41 1C 3E C5
11 0A 1E C4
33 14 76 C6
14 0E 14 C4
46 20 80 C7
Ah Bh Ch Dh*
50
2
Charge
Pump
NCO
1A 06
Kvco Control
2
C1
R1
C2
C2
Ichp
(μA)
10
10
12
12
12
12
10
14
12
12
12
Kvco
6
6
VCO
Ichp
(μA)
14
2
Kvco
[2:0]
Kvco
[2:0]
FrcVco
0
1
1
1
1
2
3
3
3
4
5
6
6
0
73M1903 Data Sheet
0
1
Fvco
System
Clock
17