ST5090 ST Microelectronics, ST5090 Datasheet - Page 22

• Manufacturer Part Number: ST5090
• Description: LOW VOLTAGE 14-BIT LINEAR CODEC WITH HIGH-PERFORMANCE AUDIO FRONT-END
• Manufacturer: ST Microelectronics

ST5090
TRANSMISSION CHARACTERISTICS (continued)
AMPLITUDE RESPONSE (Maximum, Nominal, and Minimum Levels)
Receive path - Absolute levels at V
AMPLITUDE RESPONSE (Maximum, Nominal, and Minimum Levels)
Receive path - Absolute levels at V
AMPLITUDE RESPONSE
Transmit path
(*) The limit at frequencies between 4600Hz and 8000Hz lies on a straight line connecting the two frequencies on a linear (dB) scale versus log
(Hz) scale.
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0 dBM0 level
0 dBM0 level
0 dBM0 level
0 dBM0 level
Symbol
G
G
G
G
G
G
XAG
XAV
XAT
XAF
XAL
XA
Transmit Gain Absolute
Accuracy
Transmit Gain Variation with
programmed gain
Transmit Gain Variation with
temperature
Transmit Gain Variation with
supply
Transmit Gain Variation with
frequency
Transmit Gain Variation with
signal level
Parameter
Parameter
Parameter
FR
Lr
(Differentially measured)
(Differentially measured)
Receive Amp programmed for
0dB gain
Receive Amp programmed for
- 30dB attenuation
Receive Amp programmed for
0dB gain
Receive Amp programmed for
- 30dB gain
Transmit Gain Programmed for
maximum.
Measure deviation of Digital
PCM Code from ideal 0dB
PCM code at D
Measure Transmit Gain over
the range from Maximum to
minimum setting.
Calculate the deviation from
the programmed gain relative
to GXA,
i.e. G
Measured relative to G
min. gain < G
Measured relative to G
G
Relative to 1015,625 Hz,
multitone test technique used.
min. gain < G
f = 60 Hz
f = 100 Hz
f = 200 Hz
f = 300 Hz
f = 400 Hz to 3000 Hz
f = 3400 Hz
f = 4000 Hz
f = 4600 Hz (*)
f = 8000 Hz (*)
Sinusoidal Test method.
Reference Level = -10 dBm0
V
V
V
MIC
MIC
MIC
X
= Maximum gain
= -40 dBm0 to +3 dBm0
= -50 dBm0 to -40 dBm0
AXG
= -55 dBm0 to -50 dBm0
Test Condition
Test Condition
Test Condition
= G
X
X
actual
X
< Max. gain
< Max. gain
- G
prog.
XA
XA
.
m0
- G
XA
Min.
Min.
Min.
-0.5
-0.5
-0.1
-0.1
-1.5
-0.5
-1.5
-0.5
-0.5
-1.2
1.965
61.85
1.965
61.85
Typ.
Typ.
Typ.
Max.
Max.
Max.
0.5
0.5
0.1
0.1
-30
-20
0.5
0.5
0.0
-14
-35
-47
0.5
0.5
1.2
-6
mV
mV
V
V
Unit
Unit
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RMS
RMS
RMS
RMS