st5080d STMicroelectronics, st5080d Datasheet - Page 28

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

ST5080A
AMPLITUDE RESPONSE
Receive path
28/32
Symbol
G
G
G
G
G
G
G
G
G
RAL E
RAGE
RAL L
RAGL
RAE
RAL
RAT
RAV
RAF
Receive Gain Absolute Accuracy
Receive Gain Absolute Accuracy
Receive Gain Variation with
programmed gain
Receive Gain Variation with
programmed gain
Receive Gain Variation with
temperature
Receive Gain Variation with
Supply
Receive Gain Variation with
frequency
(Earpiece or Loudspeaker)
Receive Gain Variation with
signal level (Earpiece)
Receive Gain Variation with
signal level (Loudspeaker)
Parameter
Receive gain programmed for
maximum
Apply 0 dB
Measure V
Receive gain programmed for
maximum
Apply 0 dB
Measure L
Measure Earpiece Gain over
the range from Maximum to
minimum setting.
Calculate the deviation from
the programmed gain relative
to GRAE,
i.e. G
Measure Loudspeaker Gain
over the range from Maximum
to minimum setting.
Calculate the deviation from
the programmed gain relative
to GRAL,
i.e. G
Measured relative to GRA. (LS
and V
G
Measured relative to GRA. (LS
and V
G
Relative to 1015,625 Hz,
multitone test technique used.
min. gain < G
f = 200 Hz
f = 300 Hz to 3000 Hz
f = 3400 Hz
f = 4000 Hz
Sinusoidal Test Method
Reference Level = –10 dBm0
D
D
D
D
Sinusoidal Test Method
Reference Level = –10 dBm0
D
D
D
D
R
R
R
R
R
R
R
R
R
R
= Maximum Gain
= Maximum Gain
= 0 dBm0 to +3 dBm0
= -40 dBm0 to 0 dBm0
= -50 dBm0 to -40 dBm0
= -55 dBm0 to -50 dBm0
= 0 dBm0 to +3 dBm0
= -40 dBm0 to 0 dBm0
= -50 dBm0 to -40 dBm0
= -55 dBm0 to -50 dBm0
RAGE
RAGL
Fr
Fr
)
)
Test Condition
= G
= G
S+
m0
Fr+
m0
actual
R
PCM code to D
PCM code to D
actual
< Max. gain
- G
- G
prog.
prog.
- G
- G
RAL
RAE
R
R
-0.25
-0.25
-0.25
-0.25
Min.
-0.3
-0.6
-0.5
-1.0
-0.1
-0.1
-0.3
-0.3
-0.8
-0.5
-1.2
-0,5
-1.2
Typ.
Max.
0.25
0.25
0.25
0.25
0.3
0.6
0.5
1.0
0.1
0.1
0.3
0.3
0.0
-14
0.5
1.2
0.5
1.2
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB