Datasheet

Signal Descriptions
MC13783 Technical Data, Rev. 3.5
14 Freescale Semiconductor
MC2B P2 LV Headset microphone supply output with integrated bias resistor and detect
MC1RIN V2 LV Handset primary or right microphone amplifier input
MC1LIN U2 LV Handset secondary or left microphone amplifier input
MC2IN U3 LV Headset microphone amplifier input
TXIN U4 LV General purpose line level transmit input
TXOUT V3 LV Buffered output of CEA-936-A microphone signal
Audio Receive
SPP V9 LV Handset earpiece speaker amplifier output positive terminal
SPM V10 LV Handset earpiece speaker amplifier output minus terminal
VINLSP V6 MV Handset loudspeaker and alert amplifier supply input
LSPP V5 MV Handset loudspeaker and alert amplifier positive terminal
LSPM V4 MV Handset loudspeaker and alert amplifier minus terminal
GNDLSP V1
W1
W2
— Ground for loudspeaker amplifier
LSPL U5 LV Low power output for discrete loudspeaker amplifier, associated to left channel audio
CDCOUT U6 LV Low power output for discrete amplifier, associated to voice CODEC channel
HSL V8 LV Headset left channel amplifier output
HSR U9 LV Headset right channel amplifier output
HSPGF V7 LV Headset phantom ground power line (force)
HSPGS P10 LV Headset phantom ground feedback line (sense)
HSDET R10 LV Headset sleeve detection input
HSLDET R8 LV Headset left detection input
RXOUTR U7 LV Low power receive output for accessories right channel
RXOUTL P9 LV Low power receive output for accessories left channel
RXINR R9 LV General purpose receive input right channel
RXINL U8 LV General purpose receive input left channel
Audio Other
REFA R3 LV Reference for audio amplifiers
REFB T3 LV Reference for low noise audio bandgap
REFC T2 LV Reference for voice CODEC
Table 1. Pinout Listing (continued)
Pin Location Rating* Function
* The maximum voltage rating is given per category of pins:
• EHV for Extended High Voltage (20 V)
• HV for High Voltage (7.5 V)
• EMV for Extended Medium Voltage (5.5 V)
• MV for Medium Voltage (4.65 V)
• LV for Low Voltage (3.1 V)