Audio Processor
20
MX806A
Notes
Min.
Typ.
Max.
Units
Audio Output Attenuator
Attenuation Range
0
48.0
1.0
dB
dB
dB
ꢂ
Overall Tolerance
-1.0
1.1
Step Size
1.6
2.1
Output Impedance
600
Miscellaneous Impedances
Processed Audio Input
Calibration Input
500
500
100
25.0
kꢂ
kꢂ
ꢂ
External Process Out
RX with De-emphasis Bypass
kꢂ
Table 11: Operating Characteristics
Operating Characteristics Notes:
1. Producing an output of 0dB with the Mic. Op-Amp set to 6dB (as shown in Figure 2) and the Modulator
Drives set to 0dB.
2. With Output Drives set to 0dB and the system calibrated as described in the Application Notes.
3. Input level range for 0dB output, by adjustment of the Input Level Amp.
4. It is recommended that these output levels will produce 60% or 100% deviation in the transmitter.
5. With the microphone input level 20dB above the level required to produce 0dB at the Output Drives.
6. Between Microphone or RX inputs to Modulator or Audio Outputs.
7. Deviation from the ideal overall response including the pre- or de-emphasis slope.
8. Excluding the effect of pre- or de-emphasis slope.
9. In a 30kHz bandwidth.
10. Using pre-emphasis in the TX path.
ꢀ1998 MX-COM, Inc.
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480064.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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