MAX9507

The MAX9507 leverages Maxim's DirectDrivetechnology to generate a clean, internal negative supply. Combining the internal negative power supply with the external positive 1.8V supply, the MAX9507 is able to drive a 2VP-P video signal into a 150 load. The MAX9507 provides an I2C interface for easy configuration and access to the load status. The MAX9507 can detect, report, and act upon the change of a video load. The MAX9507 also features a transparent input sync-tip clamp, allowing AC-coupling of input signals with different DC biases. The MAX9507 has an internal fixed gain of 8. The input full-scale video signal is nominally 0.25VP-P, and the output full-scale video signal is nominally 2VP-P. This feature helps reduce overall power consumption by allowing the system to turn on the video encoder and driver only when a video load is connected to the MAX9507. With a high power-supply rejection ratio (47dB at 100kHz), the MAX9507 can be powered directly from a 1.8V digital supply. The two integrated single-pole/single-throw (SPST)analog switches are ideal for routing audio, video, or digital signals. The input of the MAX9507 can be directly connected to the output of a video DAC. The MAX9507 amplifies and filters standard-definition video signals and only consumes 5.8mW quiescent power and 11.7mW average power.

The features of MAX9507 can be summarized as (1)1.8V or 2.5V single-supply operation; (2)low power consumption (5.8mW Quiescent, 11.7mW Average); (3)video load detection; (4)directdrive sets video output black level near ground; (5)dual SPST analog switches; (6)transparent input sync-tip clamp; (7)I2C control.

The absolute maximum ratings of MAX9507 are (1)VDD: -0.3V to +3V; (2)CPGND:-0.1V to +0.1V; (3)IN:-0.3V to (VDD + 0.3V); (4)OUT, NO_, COM_: (The greater of VSS and -1V)to (VDD + 0.3V); (5)SDA, SCL, DEV_ADDR, LCF: -0.3V to +4V; (6)C1P: -0.3V to (VDD + 0.3V); (7)C1N: (VSS 0.3V)to +0.3V; (8)VSS:-3V to +0.3V; (9)duration of OUT short circuit to VDD, GND, and VSS: Continuous; (10)continuous current IN, SDA, SCL, DEV_ADDR, LCF:±20mA/ NO_, COM_: ±100mA; (11)continuous power dissipation (TA = +70°C)16-Pin TQFN (derate 15.6mW/°C above +70°C): 1250mW; (12)operating temperature range:: -40°C to +125°C; (13)junction temperature::+150°C; (14)storage temperature range:: -65°C to +150°C; (15)lead temperature (soldering, 10s): +300°C.