MAS9078 Datasheet, PDF (1/10 Pages) Micro Analog systems – AM Receiver IC

DA9078.003
28 January 2004
MAS9078
AM Receiver IC
• High Sensitivity
• Very Low Power Consumption
• Wide Supply Voltage Range
• Power Down Control
• Control for AGC On
• High Selectivity by Crystal Filter
• Fast Startup Feature
DESCRIPTION
The MAS9078 AM-Receiver chip is a highly
sensitive, simple to use AM receiver specially
intended to receive time signals in the frequency
range from 40 kHz to 100 kHz. Only a few external
components are required for time signal receiver.
The circuit has preamplifier, wide range automatic
gain control, demodulator and output comparator
built in. The output signal can be processed directly
by an additional digital circuitry to extract the data
from the received signal. The control for AGC
(automatic gain control) can be used to switch AGC
on or off if necessary. Unlike MAS1016A and
MAS1016B, MAS9078 does not require AGC control
procedure in WWVB and JJY systems.
FEATURES
• Highly Sensitive AM Receiver, 0.4 µV_RMS typ.
• Wide Supply Voltage Range from 1.1 V to 3.6 V
• Very Low Power Consumption
• Power Down Control
• Fast Startup
• Only a Few External Components Necessary
• Control for AGC On
• Wide Frequency Range from 40 kHz to 100 kHz
• High Selectivity by Quartz Crystal Filter
• Die and TSSOP-16 Package
APPLICATIONS
• Time Signal Receiver WWVB (USA), JJY (Japan),
DCF77 (Germany) and MSF (UK)
• Receiver for ASK Modulated Data Signals
BLOCK DIAGRAM
QO
QI
AON (=AGC on)
RFI
AGC Amplifier
Demodulator
&
Comparator
OUT
Power Supply/Biasing
VDD VSS PDN
AGC DEC
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