AK2400 Datasheet, PDF (5/52 Pages) Asahi Kasei Microsystems – High integrated receiver for PMR-LMR

Pin/Function
[AK2400]
No.
Name
1 RFIN
2 AVSS1
3 IFOUTP
4 IFOUTN
5 MIXVDD
6 IFIP
7 AVSS2
8 LO2NDIN
9 TRIOUT
10 REFIN
11 NC
12 NC
13 NC
14 NC
15 AVDD
16 VREFA
17 AGNDOUT
18 AGNDIN
19 BIAS4
20 PDOUT
21 DISCOUT
22 AUDIOOUT
23 NAMPI
24 NAMPO
25 NRECTO
26 RSSIOUT
27 IFOUT
28 ADIN
29 PDN
30 RSTN
31 AD_SDO
32 AD_SCLK
33 AD_CSN
34 CSN
Type
AI
PWR
AO
AO
PWR
AI
PWR
AI
AO
AI
-
-
-
-
PWR
AO
AO
AI
AO
AO
AO
AO
AI
AO
AO
AO
AO
AI
DI
DI
DO
DI
DI
DI
Conditions at
power down
-
-
-
-
-
-
Function
RF signal input pin.
Connecting a inductor between this pin and ground.
Analog VSS power supply pin
IF Output Positive .This pin is open drain output.
It needs power feeding via an inductor.
IF Output Negative .This pin is open drain output.
It needs power feeding via an inductor.
Mixer VDD power supply pin
IF signal input pin
-
Analog VSS power supply pin
-
2nd LO signal input pin
-
Tripler circuit output pin
-
Reference signal input pin
Hi-Z
This pin must be left open
Hi-Z
This pin must be left open
Hi-Z
This pin must be left open
Hi-Z
This pin must be left open
-
Analog VDD power supply pin
-
LDO reference pin. Connect the capacitor to
stabilize LDO reference voltage
-
Analog ground output pin. Connect the capacitor to
stabilize the analog ground level.
-
Analog ground input pin. Connect the capacitor to
stabilize the analog ground level.
-
Output pin to connect bias resistor for reference
voltage
-
Pin1 for Discriminator Low-pass filter
-
Pin2 for Discriminator Low-pass filter
-
Demodulated audio signal output pin
-
Input pin for noise squelch amplifier
-
Output pin for noise squelch amplifier
-
Output pin for the rectification circuit
-
Output pin to connect capacitor for Received Signal
Strength Indicator(RSSI)
-
Output pin for IFBUF
-
Input pin for A/D converter
Hi-Z
Power down pin for LDO
Hi-Z
Hardware reset pin
-
A/D Converter data output pin for serial data
Hi-Z
A/D Converter clock input pin for serial data
Hi-Z
A/D Converter chip select input pin for serial data
Hi-Z
Chip select input pin for serial data
014008989-E-01
5
2015/4