MAS9178 MAS, MAS9178 Datasheet

no-image

MAS9178

Manufacturer Part Number
MAS9178
Description
Stand-alone am Receiver ic
Manufacturer
MAS
Datasheet
DESCRIPTION
The MAS9178 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
FEATURES
BLOCK DIAGRAM
Highly Sensitive AM Receiver, 0.4 V
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
RFM
RFP
www.DataSheet4U.com
VDD
Power Supply/Biasing
and
QOP
AGC Amplifier
VSS
RMS
MAS1016B,
typ.
PDN
QI
QOM
MAS9178 does not require AGC control procedure in
WWVB and JJY systems.
MAS9178A1 has differential input and internal 0.875
pF
capacitance compensation.
MAS9178A5
capacitor for crystal shunt capacitance compensation.
It can be used with crystals that do not match with
fixed
MAS9178A1.
APPLICATIONS
AGC
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
Time Signal Receiver WWVB (USA), JJY (Japan),
DCF77 (Germany) and MSF (UK)
Receiver for ASK Modulated Data Signals
compensation
0.875
Demodulator
Comparator
&
DEC
AON
pF
requires
compensation
capacitor
OUT
AM Receiver IC
external
MAS9178
for
capacitance
crystal
compensation
22 Apr, 2003
DA9178.000
shunt
1 (8)
of

Related parts for MAS9178

MAS9178 Summary of contents

Page 1

... Very Low Power Consumption Wide Supply Voltage Range Power Down Control Control for AGC On High Selectivity by Crystal Filter Fast Startup Feature MAS9178 does not require AGC control procedure in WWVB and JJY systems. MAS9178A1 has differential input and internal 0.875 pF compensation capacitance compensation. ...

Page 2

PAD LAYOUT VSS RFM RFP PDN AON VDD QOP QI QOM AGC DIE size = 1.91 x 1.78 mm; PAD size = 100 x 100 m except for VSS PAD size 104 x 112 m Note: Because the substrate ...

Page 3

ABSOLUTE MAXIMUM RATINGS Parameter Symbol Supply Voltage V Input Voltage Power Dissipation Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS Parameter Symbol Operating Voltage Current Consumption Stand-By Current Input Frequency Range Minimum Input Voltage V Maximum Input Voltage V Input Levels ...

Page 4

... Application circuit of internal compensation capacitance version MAS9178A1. Note 1 QOP RFP Ferrite AGC Amplifier Antenna RFM Power Supply/Biasing VDD VSS 1.4 V Figure 2 Application circuit of external compensation capacitance version MAS9178A5. Note 4 Optional Control for AGC on/hold AON QOM QI Demodulator & Comparator AGC DEC PDN ...

Page 5

... C_EXT have equal value with crystal’s effective shunt capacitance C should be used when fixed 0.875 pF compensation capacitance of MAS9178A1 does not match well with used crystal’s shunt capacitance. It should be noted that grounded crystal package has reduced shunt capacitance. This value is about 85% of floating crystal shunt capacitance ...

Page 6

TYPICAL APPLICATION (Continued) Note 3: Power Down / Fast Startup Control Both power down and fast startup are controlled using the PDN pin. The device is in power down (turned off) if PDN = VDD and in power up ...

Page 7

SAMPLES IN SBDIL 20 PACKAGE VDD QOP QOM AGC PIN DESCRIPTION Pin Name Pin VDD QOP ...

Page 8

... Product MAS9178A1TB00.01 AM-Receiver IC with Differential Input MAS9178A5TB00.01 AM-Receiver IC with Differential Input MAS9178A1TC00.01 AM-Receiver IC with Differential Input MAS9178A5TC00.01 AM-Receiver IC with Differential Input LOCAL DISTRIBUTOR MICRO ANALOG SYSTEMS OY CONTACTS Micro Analog Systems Oy Kamreerintie 2, P.O. Box 51 FIN-02771 Espoo, FINLAND http://www.mas-oy.com NOTICE Micro Analog Systems Oy reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products ...

Related keywords