STW5210 Datasheet, PDF (1/3 Pages) STMicroelectronics – 24-bit, 103 dB SNR audio DAC with playback time extender

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 Ω
– Sampling rate: 8 kHz to 48 kHz
– Operating mode selection: PTE™ 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 µW
– Playback: 44 mW for 103 dB SNR,
29 mW for 94 dB SNR
■ PTE™ function
– Integrated programmable PTE™ memory to
store up to 100 ms of music
(5120 x 24-bit stereo words).
– Empty PTE™ memory detection pin
– Auto-reset interrupt
■ Inputs
– I²S digital input up to 50 MHz
(in PTE™ mode)
– Stereo single ended or differential analog
input
■ Clock
– 32 kHz only needed in PTE™ 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 Ω and 2x80 mW on 16 Ω
- 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 PTE™ 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 PTE™ mode, when the PLL is driven
by the 32 kHz frequency.
January 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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