motorola SiDe C115 A4 C L3 1[1].0 040707025807 free download

File name SiDe_C115_A4_C_L3_1[1].0_040707025807.pdf

Signal Name From To Signal Description REF_CLK U14 U15 26MHz System Clock AFC U1 U14 Automatic Frequency Control - Is used to ensure accurate frequency Information APC U1 U13 Automatic Powert Control - Sets the PA output level PAENA U7 U13 Chip enable for PowerAmp IC HSO U1 J5 Headset 32 ohm driver (single ended) BATT_TEMP U1 J1 Monitors the Battery of the Battery during Charge BDR U1 U7 Downlink Processed Digital Baseband Audio Information BDX U7 U1 Uplink Processed Digital Baseband Audio Information BFSR U1 U7 Baseband Data Framesynch Receive BFSX U7 U1 Baseband Data Framesynch Transmit CLK13MHz _OUT U7 U1 System Clock to Power Control IC COL 0 - 3 U7 Keypad Matrix Forms part of Keypad Matrix CTS_MODEM U7 TP9 Clear To Send DAC U1 BQ1 Used to allow a path to earth for VBAT through the Vibrator motor DCS_RX U17 U15 Received DCS Antenna Frequency Signal DCS_PA U13 U17 Amplified DSC PA output Transmit Frequency DLPWR U1 TP27/TP3 Used to Power on the unit when appropriate accessory is connnected DSR_MODEM U7 TP11 Data Set Ready DTR_MODEM U7 TP10 Data Terminal Ready EARN U1 Voice Receiver Negative Audio Voice to Receiver EARP U1 Voice Receiver Positive Audio Voice to Receiver EXT_FIQ U1 U7 Fast external interrupt for ARM EXT_IRQ U1 U7 External interrupt for ARM FDP U7 U100 The Flashreset/deeppower-downmode control, GSM_RX U17 U15 Received GSM Antenna Frequency Signal GSM_TX_EN U7 U17/U13 Used both within the RF switch and the TX VCO to select the GSM Frequency Band GSM_PA U13 U17 Amplified GSM PA output Transmit Frequency EAR_DETECT U7 J5 Headset Detect HS_EN U7 U11/U12 Analog switch control(MODEM or Headset) HSMICBIAS U1 J5 Headset Microphone bias supply(2.5V) HSMICIP U1 U11 Headset Microphone amplifier input (single ended) LCDAO U7 Display LCD driver detect LEDKEY_EN U7 BQ4 When this signal goes high, the Keypad backlights are illuminated LEDC U1 R50 Precharge indication MCUDI U1 U7 ARM Input serial data. MCUDO U7 U1 ARM Output serial data. MCUEN0 U7