MT6625L Datasheet – 4-in-1 Connectivity Chip
4-in-1 Connectivity RF Chip
MT6625L overview
The MT6625L is a 4-in-1 Connectivity RF Chip made by MediaTek Inc., supplied in a 40-pin QFN Type package. The absolute maximum ratings table on this page lists the 6 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the MT6625L pinout and maximum ratings, with the full datasheet PDF to preview below or download.
MT6625L is a 4-in-1 connectivity chip which contains a 2.4GHz Wi-Fi/Bluetooth transceiver front-end, a 5GHz Wi-Fi transceiver front-end, a GPS receiver front-end and a complete FM receiver, along with Integrated Passive Device (IPD) in a QFN40 package. Simplified block diagram and how MT6625L is used are shown in Error! Reference source not found.. An always-on low-dropout regulator (ALDO) provides supply voltage to top control logics in MT6625L. The top control logics controls each subsystem independently. Each subsystem also has dedicated LDOs. A thermal sensor and a low- speed ADC (Analog-to-Digital Converter) is provided to monitor MT6625L’s temperature variation.
MT6625L does not have its dedicated crystal oscillator. It uses either an external (maybe temperature compensated) oscillator or clock source from companion chips in the platform such as MT6166. For Wi-Fi and Bluetooth, MT6625L provides an advanced switching mechanism which allows fast switching between Wi-Fi and BT modes. Hardware sharing and reuse is maximized. The transceiver front-ends are on MT6625L while the ADC/DAC (Analog-to-Digital Converter/Digital-to-Analog Converter) are in the companion modem chip. The interface driver/receiver buffer is designed to drive PCB trace loading. The GPS IP in MT6625L is similar to Wi-Fi/Bluetooth such that the ADC/DAC is in the companion modem chip. In contrast, the FM system integrates the modem and ADC in MT6625L, and no interface drivers/buffers are required. The IPD of MT6625L integrates 2.4G WiFi/BT balun and its matching network; and a GPS matching network.
Datasheet
MT6625L features
- MT6625L is a 4-in-1 connectivity RF chip which contains front-ends of a 2.4GHz Wi-Fi and Bluetooth transceiver, a 5GHz Wi-Fi transceiver, a GPS receiver and an FM receiver.
- MT6625L supports integrated passive device to save footprint on PCB and cost due to Wi- Fi/Bluetooth/GPS external BoM (bill of materials) in a 40-pin QFN package.
- Supports GPS external LNA.
- Option of IPD: MT6625L offers front-end components flexibility for various filtering / rejection requirements, multiple antenna configurations (e.g., 2-antenna and 3-antenna). Its sister product MT6625 offers higher integration level by integrating a 2.4G/5G diplexer.
- Wi-Fi/BT WLAN
- WLAN
- Dual-band (2.4GHz and 5GHz) single stream 802.11 a/ b/g/n RF
- Supports dual-band Wi-Fi and Bluetooth TDD operation and single-antenna topology with integrated TR-switches, baluns and a diplexer
- Integrated 2.4GHz PA with max. 20dBm CCK output power and 5GHz PA with max. 17dBm OFDM 54Mbps output power
- Typical Rx sensitivity with companion chip modem: -76.5dBm at both 11g 54Mbps mode and 11a 54Mbps mode
- Integrated power detector to support per packet Tx power control
- Built-in calibrations for PVT variation
- Fully integrated frequency synthesizers to support multiple crystal clock frequencies
- Bluetooth
- Bluetooth specification v2.1+EDR, 3.0+HS and v4.1+HS compliant
- Integrated PA with 8dBm (class 1) transmit power
- Typical Rx sensitivity with companion chip modem: GFSK -94dBm, DQPSK -93dBm, 8-DPSK - 87.5dBm
- Low-power scan function to reduce power consumption in scan modes
- FM
- 65 -108MHz with 50kHz step
- Supports RDS/RBDS
- Digital stereo modulator/demodulator
- Digital audio interface (FM 2-wire bus)
- Fast seek time 30ms/channel
- Stereo noise reduction
- Audio sensitivity 3dBµVemf (SINAD=26dB)
- Audio SINAD ≥ 60dB
- Anti-jamming
- Supports short antenna
- GPS
- RF supports GPS, GALILEO, GLONASS and BEIDOU.
- Typical Rx tracking sensitivity of -163dBm.
- Supports external LNA
- Multi-mode filters for different GNSS receiver modes
- IPD
- WBT IPD
- Integrated matching network and balun
- Supports single, dual, and triple antenna operation
- Support cellular co-existence with external filter
MT6625L pinout
| Pin | Name | Description |
|---|---|---|
| 1 | AVDD28_FSOURCE | e-fuse 2.8V supply voltage. Connected to ground in normal operation. |
| 2 | HRST_B | Hardware reset from companion modem. |
| 3 | FM_DBG | FM debugging |
| 4 | F2W_DATA | FM output data |
| 5 | F2W_CLK | FM output clock |
| 6 | SCLK | Enables 3-wire, clock and data connected to companion modem. |
| 7 | SDATA | |
| 8 | SEN | |
| 9 | CEXT | External cap for MT6625L always-on LDO |
| 10 | XO_IN | Reference clock (26MHz) input for MT6625L |
| 11 | GPS_RX_QN | GPS receiver IF IQ signals. Connected |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Wi-Fi 3.3V supply for PA and Tx modulator | AVDD33_WBT | -0.3 to 3.6 | V |
| FM 2.8V supply. If the external VCTCXO is used as reference source, AVDD28_FM will also serve as its supply voltage. | AVDD28_FM | -0.3 to 3.6 | V |
| 1.8V supply to GPS IP; always on LDO for MT6625L top logic control | AVDD18_GPS | -0.3 to 3.6 | V |
| 1.8V supply of Wi-FI and Bluetooth radio | AVDD18_WBT | -0.3 to 3.6 | V |
| Storage temperature | TSTG | -60 to +120 | °C |
| Operating temperature | TA | -40 to +85 | °C |
MT6625L applications
- Mobile Communications
- Smartphones and Feature Phones
- Cellular Connectivity
- GPS and Location-Based Services
- Wireless Data Transmission
Comments 0
Leave a comment