tea1099h NXP Semiconductors, tea1099h Datasheet - Page 16

• Manufacturer Part Number: tea1099h
• Description: Speech And Handsfree Ic With Auxiliary Inputs/outputs And Analog Multiplexer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Decision logic: pins IDT and SWT
1999 Apr 08
handbook, full pagewidth
handbook, full pagewidth
Speech and handsfree IC with auxiliary
inputs/outputs and analog multiplexer
(1) When V
SIGNAL ENVELOPE
NOISE ENVELOPE
DLC
INPUT SIGNAL
A: 85 dB/ms
B: 0.7 dB/ms
B: 0.7 dB/ms
C: 0.07 dB/ms
< 0.2 V, 10 A is forced.
3
2
7
5
TENV
TNOI
RENV
RNOI
from logic
ATTENUATOR
from dynamic
limiter
C
13 mV
13 mV
A
V dt
Fig.10 Signal and noise envelope waveforms.
4 mV (RMS)
36 mV
Fig.11 Decision logic.
36 mV
DUPLEX CONTROLLER
16
X
X
X
1
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
MGM303
SWT
IDT
MBG354
25
24
time
B
B
Product specification
TEA1099H
R IDT
C SWT