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2.3.8 4in1 combo module circuit
Figure 2-25: Combo module circuit diagram
Specification:
WiFi/BT/GPS/FM Tx/Rx full-featured combo module
WiFi self-calibration function embedded
Supported WiFi 11b/g /n features
Supported WiFi SDIO 2.0 (4-bits and 1-bit up to 50MHz)
Bluetooth specification 3.0+HS (802.11 AMP) compliance
Supported Bluetooth 4.0, BT Low Energy (LE)
GPS/GALILEO/QZSS/SBAS(WAAS/MSAS/EGNOS/GAGAN) support
Best GPS sensitivity: -165 dBm tracking sensitivity, -160 hot start sensitivity.
Supported FM 76-108MHz band with 50KHz step.
Supported FM RDS/RBDS
Содержание IQ458
Страница 1: ... SERVICE MANUAL Date Version Maintenance Level Author 2014 02 26 V1 0 L1 L4 ...
Страница 4: ... 850 Rework station Solder Iron Multimeter Chapter 1 Service tools DC power supply ...
Страница 5: ... Digital Oscillograph Screw driver and tweezers Solder wire ...
Страница 6: ... Wrist grounding strap Antistatic gloves Chapter 2 Baseband Circuit Analysis Flux paste ...
Страница 12: ... Figure 2 4 Flash memory ...
Страница 19: ... Figure 2 10 PMU LDO output voltage list ...
Страница 21: ... ...
Страница 24: ... Figure 2 15 CPU U200 Audio processor part Audio circuit description Figure 2 16 Audio output to Receiver ...
Страница 25: ... Figure 2 17 MIC circuit of Headset Figure 2 18 Audio circuit of Handset MIC ...
Страница 29: ... ...
Страница 31: ... Transceiver Description Figure 3 5 Receive Transceiver circuit ...
Страница 37: ... RF transit circuit description CPU MT6582 Transceiver MT6166 PA Sky775 SAYFP 1G95 PA SKY77593 ...
Страница 38: ... Figure 3 4 RF transit circuit pin outs ...
Страница 39: ... ...
Страница 46: ... Insert SIM Repair Process ...
Страница 47: ... N0 weak signal trouble shooting ...
Страница 48: ... ...
Страница 49: ... Receiver low voice or no voice ...
Страница 50: ... No Low sound from MIC ...
Страница 51: ... Does not charge remind error charge ...
Страница 52: ... Does not charge no charge ...
Страница 53: ... Stand by short time ...
Страница 54: ... Can t read T Flash card ...
Страница 55: ... WIFI BT FM GPS defect repair flow chart ...
Страница 56: ... factory TEST ...