uda1351h NXP Semiconductors, uda1351h Datasheet - Page 3

• Manufacturer Part Number: uda1351h
• Description: 96 Khz Iec 958 Audio Dac
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
1.1
1.2
1.3
1.4
2000 Jul 27
2.7 to 3.6 V power supply
Integrated digital filter and Digital-to-Analog
Converter (DAC)
Master-mode data output interface for off-chip sound
processing
256f
20-bit data-path in interpolator
High performance
No analog post filtering required for DAC
Supports sampling frequencies from 28 up to 100 kHz
The UDA1351H is fully pin and function compatible with
the UDA1350AH.
Controlled either by means of static pins or via the
L3 microcontroller interface.
On-chip amplifier for converting IEC 958 input to CMOS
levels
Selectable IEC 958 input channel, one out of two
Lock indication signal available on pin LOCK
Lock indication signal combined on-chip with the Pulse
Code Modulation (PCM) status bit; in case non-PCM
has been detected pin LOCK indicates out-of-lock
Key channel-status bits available via L3 interface (lock,
pre-emphasis, audio sample frequency, 2 channel PCM
indication and clock accuracy).
When the UDA1351H is clock master of the data output
interfaces:
– BCKO and WSO signals are output
– I
When the UDA1351H is clock slave of the data input
interface:
– BCK and WS signals are input
– I
96 kHz IEC 958 audio DAC
FEATURES
are supported.
are supported.
2
2
s
S-bus or LSB-justified 16, 20 and 24 bits formats
S-bus or LSB-justified 16, 20 and 24 bits formats
General
Control
IEC 958 input
Digital output and input interfaces
system clock output
3
1.5
2
3
The UDA1351H is a single chip IEC 958 audio decoder
with an integrated stereo digital-to-analog converter
employing bitstream conversion techniques.
Besides the UDA1351H, which is the full featured version
in QFP44 package, there also exists the UDA1351TS.
The UDA1351TS has IEC 958 input to the DAC only and
is in SSOP28 package.
The UDA1351H can operate in various operating modes:
Pre-emphasis information of IEC 958 input bitstream
available in L3 interface register and on pins
Automatic de-emphasis when using IEC 958 input with
32.0, 44.1 and 48.0 kHz audio sample frequencies
Soft mute by means of a cosine roll-off circuit selectable
via pin MUTE or the L3 interface
Interpolating filter (f
a recursive filter and a FIR filter
Third-order noise shaper operating at 128f
bitstream for the DAC
Filter stream digital-to-analog converter.
Digital audio systems.
IEC 958 input to the DAC including on-chip signal
processing
IEC 958 input via the digital data output interface to the
external Digital Signal Processor (DSP)
IEC 958 input to the DAC and a DSP
IEC 958 input via a DSP to the DAC including on-chip
signal processing
External source data input to the DAC including on-chip
signal processing.
APPLICATIONS
GENERAL DESCRIPTION
Digital sound processing and DAC
s
to 128f
s
) by means of a cascade of
Product specification
UDA1351H
s
generates