ia3222 integration, ia3222 Datasheet - Page 13

• Manufacturer Part Number: ia3222
• Description: Ia3222/ia3223 Ez Daa? Chipset With Analog Interface
• Manufacturer: integration

Transmitter Performance
Note:
Parameter
Idle channel noise referred to Tip and Ring
Total harmonic distortion
Gain from TX
Part-to-part gain variation at 1kHz,
600 Ω mode, normal headroom
Transmitter power headroom, sine wave
(See note.)
TX
Input common-mode rejection, defined as
( V(TX
Power-supply induced noise referred to
Tip and Ring (SGAIN = 0)
Longitudinal balance
IN
pin input resistance
IN
The bootstrap circuit shown in the application circuit (R18, C16 and Q6) is optional. Its function is to increase the transmit
headroom voltage at the low and lowest headroom settings. Those settings should be used only when the DC voltage needs
to be minimized for low-voltage countries such as Japan, Malaysia, etc.
) + V(AC
IN
pin to Tip and Ring
REF
) ) / 2
Conditions
300Hz - 3400Hz, 600 Ω, internal clock
1kHz, 3dB below clipping level, normal or high headroom
1kHz, 600 Ω, referenced to AC
1kHz, 600 Ω, referenced to AC
Transmitter gain
Product of transmitter gain times receiver gain
LP[5:4]=00, 600Ω load
LP[5:4]=00, 900Ω load
LP[5:4]=01, 600Ω load
LP[5:4]=01, 900Ω load
LP[5:4]=01, Australia or TBR21 load
LP[5:4]=01, New Zealand load
LP[5:4]=10, 600Ω load, 400-3400 Hz
LP[5:4]=10, 600Ω load with bootstrap, 400-3400 Hz
LP[5:4]=11, 600Ω load, 400-3400 Hz
LP[5:4]=11, 600Ω load with bootstrap, 400-3400 Hz
LP[5:4]=11, 600Ω load with bootstrap, DTMF tones
300Hz - 3400Hz, DC coupled
f > 3400Hz, DC coupled
1kHz, 100 mV
1kHz, 100 mV
f > 3400Hz, DC coupled, high headroom
f > 3400Hz, DC coupled, other headrooms
f = 1000Hz or f = 3000Hz
PP
PP
at V
at V
DD
DD
, high headroom
, other headrooms
REF
REF
, high headroom
, other headrooms
Min.
+6.5
+5.5
-56
-59
+3
+2
+2
+1
35
40
90
-5
-1
-9
-3
-1
IA3222/IA3223
Typ.
-82
-78
0.5
0.5
-86
-89
50
40
9
6
Max.
65
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
±dB
±dB
kΩ
dB
dB
dB
dB
dB
dB
13