FX506 Datasheet, PDF (12/17 Pages) Sanyo Semicon Device – High-Current Switching Applications

Application Information ......
Suggested Evaluation Tests and Settings
MIC. 1
10mVrms
MIC. OUTPUT
24dB
External
Gain
COMPRESSION
CAPACITOR
20dB/dec.
0dB
158mVrms
PRE-PROCESS PATH
DETECT
710mVrms
710mVrms
300Hz
14dB
3000Hz
Tx AUDIO INPUT
From
External Audio
Processes
600mVrms
POST PROCESS
AUDIO INPUT
158mVrms
755mVrms
2dB
20dB/dec.
POST-PROCESS PATH
2550Hz
3000Hz
Test
∑
dB
0dB
dB
0dB
CTCSS/DATA
Fig.8 Transmit Path – Suggested Test Settings
0dB
PRE-PROCESS
AUDIO OUTPUT
600mVrms
To
External
Audio Processes
0dB
0dB
2.2V p-p (100%)
Output Level
VCO
DRIVE (Tx)
2.2V p-p (100%)
Output Level
VCO REF
DRIVE (Tx)
Active elements used in the signal path.
Powersaved or by-passed elements that are not
employed in the signal path.
200mVrms
Rx AUDIO INPUT
20dB/dec.
Rx (Noise)
11dB
710mVrms
PRE-PROCESS PATH
DETECT
300Hz
INPUT H.P.F.
0dB
POST-PROCESS PATH
564mVrms
710mVrms
2dB
20dB/dec.
2550Hz
∑
3000Hz
3000Hz
-2.0dB
PRE-PROCESS
AUDIO OUTPUT
564mVrms
dB
0dB
0dB
dB
AUDIO
OUTPUT (Rx)
2.2V p-p
(100%)
Rx (Noise)
SQUELCH SYSTEM
NOISE
OUTPUT
NOISE
INPUT
Fig.9 Receive and Squelch Paths – Suggested Test Settings
12
#/
DAC
SQUELCH
-
DRIVE
+