AK2400 Datasheet, PDF (6/52 Pages) Asahi Kasei Microsystems – High integrated receiver for PMR-LMR

[AK2400]
35 SCLK
36 SDATAIN
37 AGC_KEEP
38
DETO /
SDATAOUT
39 LD
40 ADVDD
DI
DI
DI
DO
DO
PWR
Hi-Z
Clock input pin for serial data
Hi-Z
Data input pin for serial data
Hi-Z
Input pin for AGC_KEEP function
Hi-Z
Signal detect output pin/
Data output pin for serial data
Low
Lock detect output pin for PLL
-
AD VDD power supply pin
41 DVDD
PWR
-
Digital VDD power supply pin
42 CPVDD
PWR
-
Charge pump VDD power supply pin
43 CPVSS
PWR
-
Charge pump VSS power supply pin
44 SWIN
AI
Note1,2
Connect to resistance pin for fast lock up
45 CPZ
AI
Note1,2
Connect to the loop filter capacitor
46 CP
AO
Hi-Z
Charge pump output pin
47 PVDD
PWR
-
PLL VDD power supply pin
48 RFINP
AI
-
Prescaler input positive
49 RFINN
AI
-
Prescaler input negative
50 PVSS
51 VREF1
52 BIAS3
53 BIAS2
PWR
AO
AO
AIO
-
PLL VSS power supply pin
-
LDO reference pin. Connect the capacitor to
stabilize LDO reference voltage
-
Resistance pin for setting charge pump output
current
-
Resistance pin for current adjustment for 1st Mixer
54 BIAS1
AIO
-
Resistance pin for current adjustment for 1st Mixer
55 LOINP
56 LOINN
AI: Analog input pin
PWR: Power supply pin
AI
-
AI
-
AO: Analog output pin
DI: Digital input pin
Lo input positive
Lo input negative
AIO: Analog I/O pin
DO: Digital output pin
Note1) When [PDN]=”0”, {PDSYNTH_N}=”0”, or [PDN]=”1”,{PDSYNTH_N}=”0”, the state of the switch of
loop filter selection is ON.
Note2) Power down refers to the state where [PDN]=”0” after power-on.
[CPZ] pin should be connected to R2 and C2, which are intermediate nodes, even if the Fast Lockup feature is
not used. For the output destination from [CPZ] pin, see “Charge Pump and Loop Filter” on page 36.
014008989-E-01
6
2015/4