DA9081.006
1 August, 2005
PIN CONFIGURATION & TOP MARKING FOR PLASTIC TSSOP-16 PACKAGE
VSS
RFI2
RFIM
RFIP
NC
VDD
QO2
QO1
NC
QI
AGC
PDN2
OUT
PDN1
AON
DEC
Top Marking Definitions:
z = Version Number
YYWW = Year Week
PIN DESCRIPTION
Pin Name
Pin
Type
Function
Note
VDD
QO2
QO1
NC
1
2
3
4
5
P
Positive Power Supply
AO
AO
Quartz Filter Output for Crystal 2
Quartz Filter Output for Crystal 1
1
QI
AI
Quartz Filter Input for Crystal and External
Compensation Capacitor
AGC Capacitor
AGC
PDN2
OUT
DEC
AON
PDN1
NC
6
AO
DI
7
Power Down/Frequency Selection Input 2
Receiver Output
8
DO
AO
DI
2
3
9
Demodulator Capacitor
10
11
12
13
14
15
16
AGC On Control
DI
Power Down/Frequency Selection Input 1
RFIP
RFIM
RFI2
VSS
AI
AI
AI
G
Positive Receiver Input
4
4
Negative Receiver Input
Receiver Input 2 (for Antenna Capacitor 2)
Power Supply Ground
A = Analog, D = Digital, P = Power, G = Ground, I = Input, O = Output, NC = Not Connected
Notes:
1) Pin 4 between quartz crystal filter pins must be connected to VSS to eliminate package leadframe parasitic
capacitances disturbing the crystal filter performance. All other NC (Not Connected) pins are also
recommended to be connected to VSS to minimize noise coupling.
2) OUT = VSS when carrier amplitude at maximum; OUT = VDD when carrier amplitude is reduced
(modulated)
-
the output is a current source/sink with |IOUT| > 5 µA
at power down the output is pulled to VSS (pull down switch)
-
3) AON = VSS means AGC off (hold current gain level); AON = VDD means AGC on (working)
Internal pull-up (to AGC on) with current < 1 µA which is switched off at power down
4) Differential input versions A1..A5 have 600 kΩ biasing MOSFET-transistors towards ground from both
-
receiver inputs RFIP and RFIM. Asymmetric input versions AB..AF have input pin RFIM unconnected.
8 (12)
MAS [ MICRO ANALOG SYSTEMS ]
