Sub-Audio Signaling Processor
Page 21 of 24
MX805A
Operating Characteristics Notes:
1. Device control pins: Serial Clock, Command Data, Wake , and CS .
2. Reply Data Output
3. Reply Data and IRQ outputs
4. Leakage current into the “OFF” IRQ output.
5. See Control Register
6. With input gain components set as recommended in Figure 2.
7. Probability 97%
8. See Gain Set Register.
9. For f
IN of 65Hz to 100Hz, Response Time t = (100/f
) x 250ms.
Tone
CTCSS
R
10. Distributed across the RX Frequency band
11. With 10dB signal-to-noise ratio in a bit-rate bandwidth.
12. At any gain setting of Gain Register.
Signal
Level
(dB)
Xtal = 4.0 MHz
0
V
DD
= 5.0V
500
0
100
200
300
400
700
800
600
Frequency (Hz)
Figure 9: Typical Frequency Response of RX Lowpass Filter
ã2001 MX-COM, Inc.
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480116.006
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