AK2363 Datasheet, PDF (1/33 Pages) Asahi Kasei Microsystems – Radio Signaling LSI

ASAHI KASEI
[AK2363]
AK2363
Radio Signaling LSI
Features
□ DTMF Receiver including an AGC circuit
□ Built-in MSK modem allowing selection from 1200 and 2400 bit/s
□ Programmable modem frame detection pattern
□ Built-in 3.6864MHz oscillator circuit
□ Support of external clocks with frequencies twice, three times, and four times
higher than 3.6864MHz
□ Operating voltage range: 2.6V to 3.7V
□ Operating temperature range: -40°C to +85°C
□ Package: 24-pin QFNJ (4.0 x 4.0 x 0.75mm, 0.5mm pitch)
Overview
The AK2363 is a radio signaling LSI device into which an MSK modem and a DTMF Receiver are
integrated on a single chip.
The MSK modem supports 1200 and 2400 bit/s, and the demodulator has a 16-bit frame pattern
detection function that allows any settings. When the signal-to-noise (S/N) ratio is 12dB, the BER
characteristic at 1200 bit/s is 5.0E-06, and the BER characteristic at 2400 bit/s is 1.0E-04.
The DTMF Receiver operates in two modes: Normal mode (AGD Disable) indicating input signal
detection levels ranging from -27dBx to 0dBx and high sensitivity mode (AGC Enable) in which the
receiver operates at –40dBx to 0dBx.
In addition to a fundamental frequency of 3.686MHz, the oscillator circuit supports external clock input
with frequencies of 7.3728MHz (twice higher than 3.6864MHz), 11.0592MHz (three times higher than
3.6864MHz), and 14.7456MHz (four times higher than 3.6864MHz).
The internal operation is controlled by the three-wire serial method in which serial input data (SDATA)
consisting of a 1-bit instruction, a 4-bit address, and 8-bit data is set in synchronization with the CSN
and SCLK signals.
The 24-pin QFNJ package (4.0mm ´ 4.0mm) is employed to realize compact, high-density packaging.
MS0583-E-01
-1-
2008/06