TEA1093T Philips Semiconductors, TEA1093T Datasheet - Page 11

• Manufacturer Part Number: TEA1093T
• Description: Hands-free IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1996 Feb 09
handbook, full pagewidth
Hands-free IC
(1) When MUTET = HIGH, +10 A is forced.
When DLC/MUTER < 0.2 V, 10 A is forced.
SIGNAL ENVELOPE
NOISE ENVELOPE
g
INPUT SIGNAL
A: 85 dB/ms
B: 0.7 dB/ms
B: 0.7 dB/ms
C: 0.07 dB/ms
(23)
(22)
(20)
(19)
(15)
27
26
24
23
19
TENV
TNOI
RENV
RNOI
MUTET
ATTENUATOR
from dynamic
limiter
C
13 mV
13 mV
V dt
A
Fig.9 Signal and noise envelope waveforms.
4 mV (RMS)
36 mV
Fig.10 Decision logic.
36 mV
DUPLEX CONTROLLER
11
X
X
1
X
0
B
B
X
X
X
1
0
1 mV (RMS)
LOGIC
1
0
0
1
0
(1)
X
X
X
1
0
10 A
10 A
10 A
0
0
C
V ref
A
MGD224
SWT
IDT
(12)
(11)
MBG354
16
14
time
B
B
Product specification
R IDT
C SWT
TEA1093