AS2522B austriamicrosystems, AS2522B Datasheet - Page 6

• Manufacturer Part Number: AS2522B
• Description: IC, LINE/SPEAKER PHONE CIRCUIT, TQFP-32
• Manufacturer: austriamicrosystems

Specifications of AS2522B

• Audio Control Type: Volume
• Control Interface: Serial
• Control / Process Application: Handsfree Feature Phones With CallerID & Extended Displays
• Supply Voltage Range: 3V To 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Data Sheet AS2522B
Revision 3.4
Rx > Tx_atten
Tx_atten > Rx
Tx_atten > Rx
RO
+3dB
LINE
+14dB
Vol max
+8dB
RECV
RECI
FT2
Speech
Offset
Offset
comp
comp
YES
NO
X
CTXoffset
Vol default
Compress
Compress
RX-mode
Transmit
voice switching circuit
Receive
Mode
Idle
TX_atten
RX
detector
detector
Peak
Peak
Vol min
switching
Voice
IDLE-mode
0db to -20dB
Rx-gain
-50dB
-25
speech
switching
0dB
-10dB
-20dB
-30dB
-40dB
-50dB
Voice
-25dB
Backgnd
Gmax = +9dB
Gmin = -21dB … -40dB (VOL)
Gmax = -4dB … +16dB (VOL)
Gmin = -33dB
monitor
noise
CBN
speech
-50dB to -30dB
Tx-gain
0dB
-25
TX-mode
CBckgnd
TX-gain
RX-gain
detector
Peak
adjustable with VOL-setting
independent of VOL-setting
Compress
middle position
Remark
Cmicoffset
FT1
Offset
comp
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+23dB
+12dB