mas9180 Micro Analog Systems Oy, mas9180 Datasheet - Page 10

• Manufacturer Part Number: mas9180
• Description: Am Receiver Ic
• Manufacturer: Micro Analog Systems Oy

PIN CONFIGURATION & TOP MARKING FOR PLASTIC TSSOP-16 PACKAGE
PIN DESCRIPTION
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
2) OUT = VSS when carrier amplitude at maximum; OUT = VDD when carrier amplitude is reduced (modulated)
3) AON = VSS means AGC off (hold current gain level); AON = VDD means AGC on (working)
4) PDN = VSS means receiver on; PDN = VDD means receiver off
5) External crystal compensation capacitor pin QOM is connected only in MAS9190A5 and AF versions. It is left
6) Differential input versions A1..A5 have 600 kΩ biasing MOSFET-transistors towards ground from both
capacitances disturbing the crystal filter performance. All other NC (Not Connected) pins are also
recommended to be connected to VSS to minimize noise coupling.
-
-
-
-
unconnected in MAS9180A1 and AB..E versions which have internal compensation capacitor.
receiver inputs RFIP and RFIM. Asymmetric input versions AB..AF have input pin RFIM unconnected.
Pin Name
QOM
RFIM
RFIP
QOP
AGC
OUT
AON
VDD
DEC
PDN
the output is a current source/sink with |I
at power down the output is pulled to VSS (pull down switch)
Internal pull-up (to AGC on) with current < 1 µA which is switched off at power down
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.
VSS
NC
NC
NC
NC
QI
QOM
QOP
AGC
VDD
OUT
NC
NC
QI
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Type
AO
AO
AO
DO
AO
AI
DI
DI
AI
AI
G
P
OUT
Positive Power Supply
Positive Quartz Filter Output for Crystal
Negative Quartz Filter Output for
External Compensation Capacitor or
Second Crystal
Quartz Filter Input for Crystal and
External Compensation Capacitor
AGC Capacitor
Receiver Output
Demodulator Capacitor
AGC On Control
Power Down Input
Positive Receiver Input
Negative Receiver Input
Power Supply Ground
| > 5 µA
NC
NC
RFIP
PDN
DEC
RFIM
AON
VSS
Function
Top Marking Definitions:
z = Version Number
YYWW = Year Week
15 September, 2005
DA9180.004
Note
5
1
2
3
4
6
6
10 (15)