MAS9178 MAS, MAS9178 Datasheet - Page 7

• Manufacturer Part Number: MAS9178
• Description: Stand-alone am Receiver ic
• Manufacturer: MAS

SAMPLES IN SBDIL 20 PACKAGE
Notes:
1) Pins 4 and 6 around quartz crystal filter input pins must be connected to VSS to eliminate DIL package
2) OUT = VSS when carrier amplitude at maximum; OUT = VDD when carrier amplitude is reduced
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
PIN DESCRIPTION
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.
(modulated)
-
-
-
-
Pin Name
QOM
QOP
VDD
AGC
OUT
DEC
AON
PDN
RFM
the output is a current source/sink with |I
at power down the output is pulled to VSS (pull down switch)
Internal pull-up with current < 1 A 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.
RFP
VSS
NC
NC
NC
NC
NC
NC
NC
NC
QI
QOP 3
VDD 1
AGC 9
QOM 7
NC
NC 10
NC 4
NC 8
NC 2
QI
Pin
5
6
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
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Type
AO
AO
AO
DO
AO
AI
DI
AI
AI
AI
P
G
20 VSS
19 NC
18 RFM
17 RFP
16 NC
15 PDN
14 AON
13 DEC
12 NC
11 OUT
OUT
Positive Power Supply
Quartz Filter Output for Crystal
Quartz Filter Input for Crystal and
External Compensation Capacitor
Quartz Filter Output for 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 A
Top Marking Definitions:
YYWW = Year Week
XXXXX.X = Lot Number
x =1, 5 Sample Version Number
Function
22 Apr, 2003
DA9178.000
Note
1
1
4
2
3
7 (8)