tea1099h NXP Semiconductors, tea1099h Datasheet - Page 31

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

Philips Semiconductors
Notes
1. When the channel is enabled according to Table 2.
2. Corresponds to 1 dB tracking.
3. Corresponds to 4.3 dB noise/speech recognition level.
1999 Apr 08
D
Signal recognition
Switch-over
I
I
I
V
SWRA
| G
G
source(SWT)
sink(SWT)
idle(SWT)
V
V
SWRA
OICE SWITCH
ECISION LOGIC
Speech and handsfree IC with auxiliary
inputs/outputs and analog multiplexer
trx
SYMBOL
Srx(th)
Stx(th)
v
|
(
PINS
(
threshold voltage between pins
RENV and RNOI to switch-over
from receive to Idle mode
threshold voltage between pins
TENV and TNOI to switch-over
from transmit to Idle mode
current sourced from pin SWT
when switching to receive mode
current sunk by pin SWT when
switching to transmit mode
current sourced from pin SWT in
Idle mode
switching range
switching range adjustment
voltage gain variation from
transmit or receive mode to Idle
mode
gain tracking (G
switching, referenced to Idle
mode
PINS
STAB
IDT
AND
PARAMETER
AND
SWT)
SWR)
vtx
+ G
vrx
) during
V
V
with R
365 k
HFRX
TXIN
31
CONDITIONS
< V
SWR
< V
TXIN(th)
HFRX(th)
referenced to
; note 3
; note 3
7.5
MIN.
12.5
40
13
13
10.0
0
40
20
0.5
10.0
TYP.
Product specification
TEA1099H
12.5
+12
7.5
MAX.
mV
mV
dB
dB
dB
dB
UNIT
A
A
A