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AK1546 Datasheet(PDF) 4 Page - Asahi Kasei Microsystems

Part # AK1546
Description  3GHz Low Noise Integer-N Frequency Synthesizer
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Manufacturer  AKM [Asahi Kasei Microsystems]
Direct Link  http://www.akm.com
Logo AKM - Asahi Kasei Microsystems

AK1546 Datasheet(HTML) 4 Page - Asahi Kasei Microsystems

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[AK1546]
4. Pin Functional Description and Assignments
1. Pin Functions
No.
Name
I/O
Pin Functions
Power down
(Note 1)
Remarks
1
CPVSS
G
Charge pump ground
2
TEST1
DI
Test pin 1
Internal pull-down,
Schmidt trigger input
3
AVSS
G
Analog ground
4
RFINN
AI
Complementary input to the RF Prescaler
5
RFINP
AI
Input to the RF Prescaler
6
AVDD
P
Power supply for analog blocks
7
VREF1
AO
Connect reference voltage capacitor for LDO
“Low”
8
REFIN
AI
Reference signal input
9
PVSS
G
Peripherals ground
10
TEST2
DI
Test pin 2
Internal pull-down,
Schmidt trigger input
11
PDN
DI
Power down
Schmidt trigger input
12
CLK
DI
Serial clock input
Schmidt trigger input
13
DATA
DI
Serial data input
Schmidt trigger input
14
LE
DI
Load enable input
Schmidt trigger input
15
LD
DO
Lock detect output
“Low”
16
PVDD
P
Power supply for peripherals
17
VREF2
AO
Connect reference voltage capacitor
“Low”
18
CPVDD
P
Power supply for charge pump
19
BIAS
AIO
Resistance pin for setting charge pump current
20
CP
AO
Charge pump output
“Hi-Z”
Note 1)
“Power Down” means the state of [PDN]=”Low” after power on.
The following table shows the meaning of abbreviations used in the “I/O” column.
AI: Analog input pin
AO: Analog output pin
AIO: Analog I/O pin
DI: Digital input pin
DO: Digital output pin
P: Power supply pin
G: Ground pin
MS1388-E-00
4
2012/3


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