DA9078.003
28 January 2004
PIN CONFIGURATION & TOP MARKING FOR PLASTIC TSSOP-16 PACKAGE
VDD
NC
QO
NC
QI
AGC
NC
OUT
VSS
NC
RFI
NC
PDN
AON
NC
DEC
YYWW
9078
Top Marking Definitions:
YYWW = Year Week
PIN DESCRIPTION
Pin Name
VDD
NC
QO
NC
QI
AGC
NC
OUT
DEC
NC
AON
PDN
NC
RFI
NC
VSS
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Type
P
AO
AI
AO
DO
AO
DI
AI
AI
G
Function
Positive Power Supply
Quartz Filter Output
1
Quartz Filter Input
AGC Capacitor
Receiver Output
Demodulator Capacitor
AGC On Control
Power Down Input
Receiver Input
Power Supply Ground
2
Note
3
4
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 |I
OUT
| > 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) PDN = VSS means receiver on; PDN = VDD means receiver off
-
Fast start-up is triggered when the receiver is after power down (PDN=VDD) controlled to power up
(PDN=VSS) i.e. at the falling edge of PDN signal.
6 (10)
MAS [ MICRO ANALOG SYSTEMS ]
