Sub-Audio Signaling Processor
6.1.3
Operating Characteristics
For the following conditions unless otherwise specified.
V
DD
= 5.0V @ T
AMB
= 25
°
C
Xtal/Clock Frequency = 4.0MHz, Audio Level 0dB ref. = 308mV
RMS
@ 1kHz
Composite Signal = 308mV
RMS
@ 1kHz + 75mV
RMS
Noise + 31mV
RMS
Sub-Audio signal
Noise Bandwidth = 5kHz Band Limited Gaussian
Static Values
Supply Current
All Functions Enabled
All Functions Disabled
Powersave All
Analog Impedances
RX Sub-Audio Input
Audio Input
Audio Bypass Switch On
Audio Bypass Switch OFF
RX Amp Input (+ and -)
Comparator Input (+ and -)
RX Sub-Audio Output
TX Sub-Audio Output
Encoder Enabled
Encoder Disabled
Audio Output
Encoder Enabled
Encoder Disabled
RX Amp and Comparator Outputs
Large Signal
Small Signal
Dynamic Values
Digital Interface
Input Logic 1
Input Logic 0
Output Logic 1 (I
OH
= -120mA)
Output Logic 1 (I
OL
= -360mA)
I
OUT
Tristate (Logic 1 or 0)
Input Capacitance
Logic Input Current (V
IN
= 0 to 5.0V)
IOX (V
OUT
= 5.0V)
Page 19 of 24
MX805A
2001 MX-COM, Inc.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
All trademarks and service marks are held by their respective companies.
Doc. # 20480116.005
Notes
5
5
5
5
5
5
1
1
2
3
3
1
1
4
Min.
350.0
350.0
1.0
1.0
1.0
3.5
4.6
Typ.
5.0
2.0
0.9
1500.0
2.0
6.5
6.5
6.5
2.0
2.0
500.0
2.0
500.0
6.0
600.0
Max.
7.0
3.0
1.5
1.5
0.4
4.0
7.5
1.0
4.0
Units
mA
mA
mA
k
k
k
M
M
M
k
k
k
k
k
k
k
V
V
V
V
μ
A
pF
μ
A
μ
A