STW52100K_HF| Datasheet

STW52100K_HF, STW52100KT_HF, STW521025T_HF, STw5210

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STw5210
24-bit, 103 dB SNR audio DAC with playback time extender
Data Brief

Features

DAC 24-bit audio DAC 103 dB dynamic range for the full audio path THD -66 dB (0.0 5%) on 32 Sampling rate: 8 kHz to 48 kHz Operating mode selection: PTETM playback time extender or standard (continuous) mode SNR and consumption adjustable by register (4 steps) Supply Direct connection to the battery (2.7 V to 4.8 V) thanks to integrated power management I/O supply: 1.62 V to 3.6 V Power consumption Stand-by: 1 uW Playback: 44 mW for 103 dB SNR, 29 mW for 94 dB SNR PTETM function Integrated programmable PTETM memory to store up to 100 ms of music (5120 x 24-bit stereo words). Empty PTETM memory detection pin Auto-reset interrupt Inputs I2S digital input up to 50 MHz (in PTETM mode) Stereo single ended or differential analog input Clock 32 kHz only needed in PTETM mode System clock input (13 MHz, 19.2 MHz, 26 MHz and 38.4 MHz) for standard (continuous) mode Internal PLL

VQFPN-44 7x7x1mm 0.5mm pitch

TFBGA-40 4x4x1.2mm 0.5mm pitch

WLCSP-36 2.6x2.6x0.6mm 0.4mm pitch

Analog output drivers Stereo headset amplifier - `True ground' output amplifier (no coupling capacitor). - 2x50 mW on 32 and 2x80 mW on 16 - 66 dB programmable gain - Plug detection, click/pop suppression, independent right and left channel shutdown control Stereo differential line out RoHS (lead-free) packages

Description
The STw5210 is a 24-bit high performance DAC for mobile handset application with 103 dB dynamic range for the whole audio path. It embeds an innovative PTETM function that reduces drastically the whole application power consumption. In this mode, the music is played back autonomously, while the whole system is switched to power saving condition. The IC is then driven by the 32 kHz clock only. The device can be used also in a conventional way (continuous mode) and be driven by the system clock. STw5210 is very easy to integrate and thanks to its embedded power management, it can be directly connected to the battery. The device foot print is very small as the EBOM is reduced to a few components. The 50 mW headset amplifier is of "True-ground" type (no coupling capacitor) and no additional quartz is required in PTETM mode, when the PLL is driven by the 32 kHz frequency.

January 2008

Rev 1

1/3
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