参数资料
型号: 73M1903C-IM/F
厂商: Maxim Integrated Products
文件页数: 8/48页
文件大小: 0K
描述: IC MODEM AFE MULTIREGIONAL 32QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 490
通道数: 2
电压 - 电源,模拟: 3 V ~ 3.6 V
电压 - 电源,数字: 3 V ~ 3.6 V
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN(5x5)
包装: 管件
73M1903C Data Sheet
DS_1903C_033
16
Rev. 5.0
5
PLL Configuration Registers
Register08 (PLL_PSEQ): Address 08h
Reset State 00h
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pseq(7:0)
(0X08[7:0])
This corresponds to the sequence of divisor. If Prst(2:0) setting in
Register09 is 00, this register is ignored.
Register09 (PLL_RST): Address 09h
Reset State 0Ah
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Prst(2:0)
Pdvsr(4:0)
Prst(2:0) represents the rate at which the sequence register is reset.
Pdvsr(4:0) represents the divisor.
Register0A (PLL_KVCO): Address 0Ah
Reset State 22h
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Ichp(3:0)
Reserved
Kvco(2:0)
Ichp(3:0)
(0X0A[:47]) represents the size of the charge pump current in the PLL. This charge pump
current can be calculated with
Ichp = 2.0μA* (2 + Ichp0 + Ichp1 * 21 + Ichp2 * 22+Ichp3 * 2^3 )*
(T/To), where To=300 C
° and T=Temperature in K°.
Bit 3 is a reserved control bit. This bit shall remain 0 always.
Kvco(2:0)
(0X0A[2:0]) Represents the magnitude of Kvco associated with the VCO within PLL.
Table 3: Fvco and Kvco Settings at 25°C
Kvco2
Kvco1
Kvco0
Fvco
Kvco
0
33 MHz
38 MHz/v
0
1
36 MHz
38 MHz/v
0
1
0
44 MHz
40 MHz/v
0
1
48 MHz
40 MHz/v
1
0
57 MHz
63 MHz/v
1
0
1
61 MHz
63 MHz/v
1
0
69 MHz
69 MHz/v
1
73 MHz
69 MHz/v
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