FEATURES
SERIAL INPUT
–92dB MAX THD: FS Input, K Grade
–74dB MAX THD: –20dB Input, K Grade
96dB DYNAMIC RANGE
NO EXTERNAL COMPONENTS REQUIRED
16-BIT RESOLUTION
15-BIT MONOTONICITY, TYP
0.001% OF FSR TYP DIFFERENTIAL
LINEARITY ERROR
1.5ms SETTLING TIME, TYP: Voltage Out
±3V OR ±1mA AUDIO OUTPUT
EIAJ STC-007-COMPATIBLE
OPERATES ON ±5V TO ±12V SUPPLIES
PINOUT ALLOWS IOUT OPTION
PLASTIC DIP OR SOIC PACKAGE

DESCRIPTION
The PCM56 is a state-of-the-art, fully monotonic,
digital-to-analog converter that is designed and
specified for digital audio applications. This device
employs ultra-stable nichrome (NiCr) thin-film
resistors to provide monotonicity, low distortion, and
low differential linearity error (especially around
bipolar zero) over long periods of time and over the
full operating temperature.
This converter is completely self-contained with a
stable, low noise, internal zener voltage reference;
high speed current switches; a resistor ladder network;
and a fast settling, low noise output operational
amplifier all on a single monolithic chip. The
converters are operated using two power supplies that
can range from ±5V to ±12V. Power dissipation with
±5V supplies is typically less than 200mW. Also
included is a provision for external adjustment of the
MSB error (differential linearity error at bipolar zero)
to further improve total harmonic distortion (THD)
specifications if desired. Few external components
are necessary for operation, and all critical
specifications are 100% tested. This helps assure the
user of high system reliability and outstanding overall
system performance.
The PCM56 is packaged in a high-quality 16-pin
molded plastic DIP package or SOIC and has passed
operating life tests under simultaneous high-pressure,
high-temperature, and high-humidity conditions.