RF2958 Просмотр технического описания (PDF) - RF Micro Devices
Номер в каталоге
Компоненты Описание
Список матч
RF2958 Datasheet PDF : 20 Pages
| |||
RF2958
IF PLL Register 2 (IFPLL2)-Address 00010
Location
Bit Name Default
IFPLL2(17:16)
Reserved
0
IFPLL2(15:0)
IF_N(15:0)
22h
IF PLL Register 3 (IFPLL3)-Address 00011
Location
Bit Name Default
IFPLL3(17)
Reserved
0
IFPLL3(16:8)
DN1(16:8)
1FFh
IFPLL3(7:4)
IFPLL3(3:0)
CT_DEF1(3:0)
7h
KV_DEF1(3:0)
8h
RF PLL Register 4 (RFPLL1)-Address 00100
Location
Bit Name Default
RFPLL1(17)
PLL_EN
0
RFPLL1(16)
KV_EN
0
RFPLL1(15)
VTC_EN
1
RFPLL1(14)
LPF
0
RFPLL1(13)
CPL
0
RFPLL1(12)
PDP
1
RFPLL1(11)
AUTOCAL_EN
0
RFPLL1(10)
LD_EN
0
RFPLL1(9)
P
0
RFPLL1(8:4)
RFPLL1(3:0)
Reserved
DAC(3:0)
00000
3h
RF PLL Register 5 (RFPLL2)-Address 00101
Location
Bit Name Default
RFPLL2(17:6)
RFPLL2(5:0)
N2(11:0)
5Eh
NUM2(23:18)
0
RF PLL Register 6 (RFPLL3)-Address 00110
Location
Bit Name Default
RFPLL3(17:0)
NUM2(17:0)
0
Function
Reserved, program to zero (0)
IFPLL divide-by-N value
Function
Reserved, program to zero (0)
IF VCO KV Calibration, delta N value (signed 2’s complement)
DeltaF = DN1/(Fr)
IF VCO Coarse Tuning Value
IF VCO KV Calibration, default value
Function
RF PLL Enable
0 = disabled
1 = enabled
RF PLL KV Calibration Enable
0 = disabled
1 = enabled
RF PLL Coarse Tune Enable
0=VCO coarse tuning system is disabled
1=VCO coarse tuning system is enabled
RF PLL Loop Filter Bypass
0=Internal loop filter is used
1=Internal loop filter is bypassed and External loop filter is used
RF PLL Charge Pump Leakage Current
0=minimum value
1=2xminimum value
RF PLL Phase Detector Polarity
0=positive, VCO frequency increases with increasing tuning voltage
1=negative, VCO frequency decreases with increasing tuning voltage
RF PLL Auto Calibration Enable
0 = disabled
1 = enabled
RF PLL Lock Detect Enable
0 = disabled
1 = enabled
RF PLL Prescaler Modulus
0=8/9 Mode
1=8/10 Mode
Reserved, program to zero (0)
RF VCO Coarse Tuning Voltage
LPF_V1=int (coarse tuning voltage/VDD)x16
RF PLL Divide By N Value
RF PLL Numerator Value
Function
RF PLL Numerator Value
Function
11-276
Rev A0 050209
Share Link: 