TAS5709PHPR

Product Summary

The TAS5709PHPR is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers. The TAS5709PHPR is a slave-only device receiving all clocks from external sources. The TAS5709PHPR operates with a PWM carrier between 384-kHz switching rate and 352-KHz switching rate depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

Parametrics

TAS5709PHPR absolute maximum ratings: (1)Supply voltage, DVDD, AVDD: -0.3 to 3.6 V; PVDD_X: -0.3 to 30 V; OC_ADJ: -0.3 to 4.2 V; (2)Input voltage, 3.3-V digital input: -0.5 to DVDD + 0.5 V; 5-V tolerant digital input (except MCLK): -0.5 to DVDD + 2.5V; 5-V tolerant MCLK input: -0.5 to AVDD + 2.5V; (3)OUT_x to PGND_X: 32 V; (4)BST_x to PGND_X: 43 V; (5)Input clamp current, IIK: ±20 mA; (6)Output clamp current, IOK: ±20 mA; (7)Operating free-air temperature: 0 to 85℃; (8)Operating junction temperature range: 0 to 150℃; (9)Storage temperature range, Tstg: -40 to 125℃.

Features

TAS5709PHPR features: (1)20-W Into an 8-Ω Load From an 18-V Supply; (2)Wide PVDD Range, From 8 V to 24 V; (3)Efficient Class-D Operation Eliminates Need for Heatsinks; (4)Requires Only 3.3 V and PVDD; (5)One Serial Audio Input (Two Audio Channels); (6)Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S); (7)Independent Channel Volume Controls With 24-dB to Mute; (8)Soft Mute (50% Duty Cycle); (9)Programmable 2-Band Dynamic Range Control; (10)22 Programmable Biquads for Speaker EQ and Other Audio Processing Features; (11)Programmable Coefficients for DRC Filters; (12)Programmable Input and Output Mixers; (13)DC Blocking Filters; (14)Support for 3D Effects; (15)Pseudo Bass Support; (16)Serial Control Interface Operational Without MCLK; (17)Factory-Trimmed Internal Oscillator for automatic rate detection; (18)Surface Mount, 48-PIN, 7-mm × 7-mm HTQFP Package; (19)Thermal and Short-Circuit Protection.

Diagrams