MAS9180ADTC00 Просмотр технического описания (PDF) - Micro Analog systems
Номер в каталоге
Компоненты Описание
производитель
MAS9180ADTC00 Datasheet PDF : 15 Pages
| |||
DA9180.004
15 September, 2005
PIN CONFIGURATION & TOP MARKING FOR PLASTIC TSSOP-16 PACKAGE
VDD
QOP
QOM
NC
QI
AGC
NC
OUT
VSS
RFIM
NC
RFIP
NC
PDN
AON
DEC
Top Marking Definitions:
z = Version Number
YYWW = Year Week
PIN DESCRIPTION
Pin Name
Pin
Type
Function
VDD
1
P
Positive Power Supply
QOP
2
AO
Positive Quartz Filter Output for Crystal
QOM
3
AO
Negative Quartz Filter Output for
External Compensation Capacitor or
Second Crystal
NC
4
QI
5
AI
Quartz Filter Input for Crystal and
External Compensation Capacitor
AGC
6
AO
AGC Capacitor
NC
7
OUT
8
DO
Receiver Output
DEC
9
AO
Demodulator Capacitor
AON
10
DI
AGC On Control
PDN
11
DI
Power Down Input
NC
12
RFIP
13
AI
Positive Receiver Input
NC
14
RFIM
15
AI
Negative Receiver Input
VSS
16
G
Power Supply Ground
A = Analog, D = Digital, P = Power, G = Ground, I = Input, O = Output, NC = Not Connected
Note
5
1
2
3
4
6
6
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) 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.
5) External crystal compensation capacitor pin QOM is connected only in MAS9190A5 and AF versions. It is left
unconnected in MAS9180A1 and AB..E versions which have internal compensation capacitor.
6) 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.
10 (15)
Share Link: 