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2 - 1
SECTION 2. INSIDE
VIEWS
• LOGIC UNIT
VCC LINE SWITCH
(IC104)
EEPROM
(IC51)
ALC AMP
(IC300)
DIGITAL/ANALOG
MODE SWITCH
(IC303)
AF FILTER
(IC501 )
AF BUFERF
(IC504)
LINEAR CODEC
(IC503)
+5 V SWITCHING REGULATOR
(IC102)
AF MUTE SWITCHES
(Q403, 404)
IDC
(IC302)
3.3V REGULATOR
(Q507)
MIC GAIN SWITCH
(Q303)
MIC LINE SWITCH
(IC301)
1/2 DIVIDER
FOR MODEM CLOCK
(IC500)
AF POWER AMP
(IC400)
CPU3V REGULATOR
(IC100)
LCD DRIVER
(IC603)
DSP CODEC
(IC506)
DSP CLOCK AMP
(IC505)
BUFFER for DSP CLOCK
(IC505)