User's Manual

COMPANY CONFIDENTIAL
22
2. Hardware features
T77H468 consists of the following key engine components, in addition to the required
front-end RF and other discrete components.
Modem engine
■ Soft Baseband: MDM-9615
■ RF: WTR1605L
■ Power: PM8018
Connectivity engine
■ USB: USB2.0 high-speed
■ USIM: located off board
■ Antenna: connectors for the off board antennas
2.1 Mobile Data Modem
The MDM9615 chipset solution integrates powerful digital signal processors (DXPs) into any
market-proven wireless modem, offering increased processing capacity and lower power
consumption. They are complete system solutions that operate on networks worldwide. The
major functions of MDM9615 used on T77H468 are listed below:
❒ Processor:
- Manufactured in 28nm CMOS process
- System uP (Cortex-A5+L2 cache at up to 550MHz)
- ARM7 processor for the RPM
❒ Memory:
- External memory (16KB for security)
EBI1: 1Gb LPDDR1
- External memory
EBI2: 2Gb NAND flash
❒ Air interface:
- WCDMA (R99, HSDPA, HSUPA, HSPA+, DC-HSPA+)
- CDMA (1x, EV-DOr0, EV-DOrA, EV-DOrB)
- LTE (R9 Cat3, FDD)
- GSM (GSM R99, GPRS, EDGE)
- GPS/Glonass
❒ Advance RX operation:
- Mobile receive diversity (WCDMA, CDMA and LTE)