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NJU7512VT fiches techniques PDF

New Japan Radio - 1200 bps MSK Modem

Numéro de référence NJU7512VT
Description 1200 bps MSK Modem
Fabricant New Japan Radio 
Logo New Japan Radio 





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NJU7512VT fiche technique
NJU7512VT
1200 bps MSK Modem for Data Communication
GENERAL DESCRIPTION
The NJU7512 is a 1200bps MSK (Minimum Shift Keying)
modem IC, which operates from 1.8V power supply.
It includes 14.7456MHz oscillator and selectable OSC buffer
for an external output, and a frame detector for receiving.
MSK modem is especially used for low power data
communication, which requires high receiving sensitivity
and noise susceptibility characteristics.
PACKAGE OUTLINE
NJU7512VT
FEATURES
Low Operating Current
1.9mA (Modulation and Demodulation operation, VDD=1.8V)
Wide Operating Voltage range
1.8 to 5.5V
Baud Rate
1200 bps
Oscillating Frequency
14.7456 MHz
Selectable OSC Buffer Output
14.7456 MHz or 3.6864 MHz
Built-in Frame Detector
2 types of frame data or disable
Power Save Function
Power control for Modulator and Demodulator blocks respectively
Easy to use modem function
A few external parts required
Wide Operating Temperature range - 40 to +105 °C
CMOS Technology
Package Outline
SSOP20 6.5mm x 6.4mm, t=0.65mm
Please refer the IC Package information about the Package outline and Packing.
BLOCK DIAGRAM
AIN AGS
12
-- BPF
+
FRS 17
FRK 18
Detector
Limiter Amp.
Clock
Recocer
Frame
Detector
TD 15
TRD 16
MSK
Mod.
Sine
Wave
LPF
Standard Bias Analog
Voltage Voltage Ground
Internal Timing Clock
Timing
Generator
Standard Bias
19
10 20
11 7
MX
VSS VDD1
FSE XBO
5 RDT
4 RTM
3 PLLS
14 PDRX
13 PDTX
12 BR
8 XOUT
9 XIN
6 VDD2
Ver.2013-07-10
-1-

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