TEA1098 Philips Semiconductors, TEA1098 Datasheet - Page 23

• Manufacturer Part Number: TEA1098
• Description: Speech and handsfree IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1999 Oct 14
I
Preamplifier inputs (pins MIC+, MIC , IR, DTMF, TXIN, HFTX and HFRX)
TX amplifiers
TX
G
CMRR
THD
V
DTMF
G
BB(PD)
Z
Z
Z
Z
Z
Z
G
G
G
G
G
G
no(LN)
Speech and handsfree IC
v(MIC-LN)
v(DTMF-LN)
i(MIC)
i(IR)
i(DTMF)
i(TXIN)
i(HFTX)
i(HFRX)
SYMBOL
v(f)
v(T)
v(mute)
v(f)
v(T)
v(mute)
HANDSET MICROPHONE AMPLIFIER
AMPLIFIER
current consumption on V
during power-down phase
input impedance
input impedance between pins
IR and LN
input impedance between pins
DTMF and GND
input impedance between pins
TXIN and GNDTX
input impedance between pins
HFTX and GND
input impedance between pins
HFRX and GND
voltage gain from pin
MIC+/MIC to LN
gain variation with frequency
referenced to 1 kHz
gain variation with temperature
referenced to 25 C
common mode rejection ratio
total harmonic distortion at LN
noise output voltage at pin LN;
pins MIC+/MIC shorted
through 200
gain reduction if not activated
voltage gain from pin
DTMF to LN
gain variation with frequency
referenced to 1 kHz
gain variation with temperature
referenced to 25 C
gain reduction if not activated
(
PINS
differential between pins
MIC+ and MIC
single-ended between pins
MIC+/MIC and GNDTX
DTMF, LN
PARAMETER
AND
(
PINS
RECO)
MIC+, MIC
BB
PD = LOW
V
f = 300 to 3400 Hz
T
V
I
V
psophometrically weighted
(p53 curve)
see Table 2
V
f = 300 to 3400 Hz
T
see Table 2
line
amb
amb
MIC
LN
LN
DTMF
AND
= 4 mA;
= 1.4 V (RMS)
= 0.12 V (RMS)
= 5 mV (RMS)
= 25 to +75 C
= 25 to +75 C
23
CONDITIONS
= 50 mV (RMS)
LN)
43.3
60
24.35 25.35
60
MIN.
460
70
35
20
20
20
20
20
44.3
80
80
80
0.25
0.25
77.5
0.25
0.25
TYP.
Product specification
45.3
2
10
26.35
TEA1098
MAX.
k
k
k
k
k
k
k
dB
dB
dB
dB
%
%
dBmp
dB
dB
dB
dB
dB
UNIT
A