TEA1095 Philips Semiconductors, TEA1095 Datasheet - Page 15

• Manufacturer Part Number: TEA1095
• Description: Voice switched speakerphone IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1997 Nov 25
Envelope and noise detectors (TSEN, TENV, TNOI, RSEN, RENV and RNOI)
P
G
G
L
S
I
I
N
I
I
D
V
source(ENV)
sink(ENV)
source(NOI)
sink(NOI)
SYMBOL
OGARITHMIC COMPRESSOR AND SENSITIVITY ADJUSTMENT
G
det(TSEN)
det(RSEN)
V
V
REAMPLIFIERS
IGNAL ENVELOPE DETECTORS
RINDT(rms)
OISE ENVELOPE DETECTORS
IAL TONE DETECTOR
Voice switched speakerphone IC
v(TSEN)
v(RSEN)
ENV
NOI
vrxm
gain reduction with MUTERX
active
voltage gain from TXIN to TSEN
voltage gain between RXIN to
RSEN
sensitivity detection on pin TSEN;
voltage change on pin TENV
when doubling the current from
TSEN
sensitivity detection on pin RSEN;
voltage change on pin RENV
when doubling the current from
RSEN
maximum current sourced from
pin TENV or RENV
maximum current sunk by
pin TENV or RENV
voltage difference between
pins RENV and TENV
maximum current sourced from
pins TNOI or RNOI
maximum current sunk by
pins TNOI or RNOI
voltage difference between
pins RNOI and TNOI
threshold level at pin RXIN
(RMS value)
PARAMETER
MUTERX = HIGH
I
I
when 10 A is sourced
from both RSEN and
TSEN; envelope detectors
tracking; note 1
when 2 A is sourced
from both RSEN and
TSEN; noise detectors
tracking; note 1
TSEN
RSEN
= 0.8 to 160 A
= 0.8 to 160 A
CONDITIONS
15
0.75
0.75
MIN.
80
40
0
18
18
120
1
1
120
42
TYP.
3
3
Product specification
1.25
1.25
MAX.
TEA1095
dB
dB
dB
mV
mV
mV
mV
mV
UNIT
A
A
A
A