st5080d STMicroelectronics, st5080d Datasheet - Page 27

• Manufacturer Part Number: st5080d
• Description: Piafe Programmable Isdn Audio Front End
• Manufacturer: STMicroelectronics

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 L
AMPLITUDE RESPONSE
Transmit path
(*) The limit at frequencies between 4600Hz and 8000Hz lies on a stright line connecting the two frequencies on a linear (dB) scale versus log
(Hz) scale.
0 dBM0 level
0 dBM0 level
0 dBM0 level
0 dBM0 level
Symbol
G
G
G
G
G
G
XAG
XAT
XAV
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
S
FR
(Differentially measured)
(Differentially measured)
Receive Amp programmed for
0dB gain
Receive Amp programmed for
- 15dB 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 = 200 Hz
f = 300 Hz to 3000 Hz
f = 3400 Hz
f = 4000 Hz
f = 4600 Hz (*)
f = 5000 Hz to 6000 Hz
f = 8000 Hz (*)
f > 8000 Hz
Sinusoidal Test method.
Reference Level = -10 dB
V
V
V
MIC
MIC
MIC
X
= Maximum gain
= -40 dB
= -50 dB
AXG
= -55 dB
Test Condition
Test Condition
Test Condition
= G
X
X
actual
m0
m0
m0
< Max. gain
< Max. gain
X
to +3 dB
to -40 dB
to -50 dB
- G
prog.
XA
XA
.
m0
m0
m0
m0
m0
- G
XA
-0.30
-0.25
Min.
Min.
Min.
-0.5
-0.1
-0.1
-1.5
-0.3
-0.8
-0.5
-1.2
824.5
146.6
1.384
Typ.
Typ.
Typ.
43.7
Max.
Max.
Max.
0.30
0.25
-0.1
0.5
0.1
0.1
-26
0.3
0.0
-14
-35
-40
-47
-40
0.5
1.2
ST5080A
mV
mV
mV
V
Unit
Unit
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RMS
27/32
RMS
RMS
RMS