Application Note 9814
PCM4 Con?guration Typical Measurements
MODE A 33 VAR. GAIN/FRE. TX:
RX: -0.dBr
MODE A 33 VAR. GAIN/FRE. TX:
+0.0 RX:
dBr
+1.5
A-A
+1.5
A-A
RX
TS +1.0
A-D
RX:
TS
0
+1.0
D-A
0
RESULT
+0.0
D-A
RESULT
+0.0
D-A
dB
-1.0
D-D
SWP/S
dB
-1.0
D-D
SWP/S
-1.5
200
1000
2000
3000
FREQ.
3600
-1.5
200
1000
2000
3000
3600
FREQ.
TX:
TS 0
+0.00 dBm0
201Hz
? =100Hz
TX: TS 0
+0.00 dBm0
201Hz
? = 100Hz
FIGURE 9. DIGITAL TO ANALOG GAIN vs FREQUENCY
FIGURE 10. ANALOG TO DIGITAL GAIN vs FREQUENCY
MODE A 43 VAR. GAIN/LEV. TX:
RX: -0.0dBr
MODE A 43 VAR. GAIN/LEV. TX:
+0.0 RX:
dBr
MODIF.
+2.0
A-A
MODIF.
+2.0
A-A
RX:
RX:
TS
0
RESULT
dB
+1.0
+0.0
A-D
D-A
D-D
TS
0
RESULT
dB
+1.0
+0.0
A-D
D-A
D-D
-1.0
SWP/S
-1.0
SWP/S
-2.0
-55.0
TX: TS 0
-40.0
-55.0 0dBM0
-20.0
1014Hz
LEVEL
+0.0
? = 2.0dB
TX:
-2.0
-55.0 -40.0
TS 0 -55.0 0dBm0
-20.0
1014Hz
LEVEL
+0.0
? = 2.0dB
FIGURE 11. DIGITAL TO ANALOG GAIN vs LEVEL
FIGURE 12. ANALOG TO DIGITAL GAIN vs LEVEL
MODE A 55 TOTAL DIST.
TX:
RX: 0.0dBr
MODE A 55 TOTAL DIST.
TX: +0.0 RX:
dBr
+44.0
RX: +40.0
A-A
+44.0
RX: +40.0
A-A
TS
0
RESULT +30.0
dB
+20.0
A-D
D-A
D-D
SWP/S
TS
0
RESULT +30.0
dB
+20.0
A-D
D-A
D-D
SWP/S
TX:
+14.0
-55.0 -40.0
TS 0 -55.0 0dBm0
-20.0
1014Hz
LEVEL
+0.0
? = 2.0dB
TX:
+14.0
-55.0 -40.0
TS 0 -55.0 0dBm0
-20.0
1014Hz
LEVEL
+0.0
? = 2.0dB
FIGURE 13. DIGITAL TO ANALOG TOTAL DISTORTION
4-9
FIGURE 14. ANALOG TO DIGITAL TOTAL DISTORTION
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