ADMTV340: Zero-IF Mobile TV Tuner IC for CMMB

The ADMTV340 is a highly integrated CMOS zero-IF conversion tuner IC for CMMB (China Mobile Multimedia Broadcasting) standards.

It operates from 2635 to 2660 MHz. It includes a low noise amplifier and direct conversion down mixers. On-chip low phase noise VCO along with high resolution fractional-N-frequency synthesizer makes in-band phase noise low enough for CMMB applications.

Automatic tuned baseband channel select filters are available with automatic tuning. The ADMTV340 also includes high dynamic range baseband variable gain amplifier. A low noise amplifier and optimized gain control scheme enable wide dynamic range operation.

The ADMTV340 consumes less than 150 mW. Power down function reduces the standby mode current consumption for power hungry systems. Using small leadless 5 mm × 5 mm 32-lead LFCSP, the ADMTV340 is the best solution for portable CMMB application especially for mobile phone, notebook PC, PDA, and etc. where low power consumption is critical. It has a standard SPI serial bus interface.

产品应用领域 Applications

CMMB mobile phones
Portable satellite DMB receivers: notebook PC, PDA, and portable multimedia terminals
CMMB receiver for vehicular application

ADMTV340 特点

Operating frequency range 2635 ~ 2660 MHz
Wide dynamic range
Low power consumption: 150 mW
Channel select filter for adjacent channel rejection: 65 dB at 8 MHz
20-bit Σ-Δ fractional-N PLL exhibits 72 Hz fine frequency resolution
On-chip low phase noise VCO eliminates external tank circuits
No external capacitors to remove DC-offset
Ideal for portable application such as mobile phone, notebook PC, and PDA
SPI interface
Small 32-lead frame chip scale package (LFCSP) (5 mm × 5 mm)

ADMTV340 功能框图

ADMTV340 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADMTV340CPZRL	量产	LFCSP:LEADFRM CHIP SCALE	32	工业