ADF7012 Просмотр технического описания (PDF) - Analog Devices
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ADF7012 Datasheet PDF : 28 Pages
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REGISTER 3: FUNCTION REGISTER
SD TEST
MODES
PLL TEST
MODES
PA BIAS
VCO BIAS
MUXOUT
BLEED CHARGE
CURRENT PUMP
ADF7012
I1 DATA INVERT
0 NORMAL
1 INVERTED
PA3 PA2 PA1 PA BIAS
0
0
0
5µA
0
0
1
6µA
0
1
0
7µA
.
.
.
.
.
.
.
.
1
1
1
12µA
VCO BIAS
VB4 VB3 VB2 VB1 CURRENT
0
0
0
1
0.5mA
0
0
1
0
1mA
.
.
.
.
.
1
1
1
1
8mA
LD1 LD PRECISION
0
3 CYCLES (DEFAULT)
1
5 CYCLES
CP4 BLEED DOWN
0 BLEED OFF (DEFAULT)
1 BLEED ON
CP3 BLEED UP
0 BLEED OFF (DEFAULT)
1 BLEED ON
CP2 CP1
0
0
0
1
1
0
1
1
CHARGE PUMP
CURRENT
0.3mA
0.9mA
1.5mA
2.1mA
VD1 VCO DISABLE
0 VCO ON
1 VCO OFF
PD1 PLL ENABLE
0 PLL OFF
1 PLL ON
PD2 PA ENABLE
0 PA OFF
1 PA ON
PD3
0
1
CLKOUT
CLKOUT OFF
CLKOUT ON
M4 M3 M2 M1 MUXOUT
0
0
0
0
LOGIC LOW
0
0
0
1
LOGIC HIGH
0
0
1
0
INVALID MODE – DO NOT USE
0
0
1
1
REGULATOR READY (DEFAULT)
0
1
0
0
DIGITAL LOCK DETECT
0
1
0
1
ANALOG LOCK DETECT
0
1
1
0
R DIVIDER/2 OUTPUT
0
1
1
1
N DIVIDER/2 OUTPUT
1
0
0
0
RF R DIVIDER OUTPUT
1
0
0
1
DATA RATE
1
0
1
0
BATTERY MEASURE IS < 2.35V
1
0
1
1
BATTERY MEASURE IS < 2.75V
1
1
0
0
BATTERY MEASURE IS < 3V
1
1
0
1
BATTERY MEASURE IS < 3.25V
1
1
1
0
NORMAL TEST MODES
1
1
1
1
Σ-Δ TEST MODES
Figure 44. Register 3: Function Register
Rev. A | Page 27 of 28
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