SAA7715 PHILIPS [NXP Semiconductors], SAA7715 Datasheet - Page 4

• Manufacturer Part Number: SAA7715
• Description: Digital Signal Processor
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
3
The SAA7715 is a cost effective and powerful high
performance 24-bit programmable DSP for a variety of
digital audio applications. This DSP device integrates a
24-bit DSP core with programmable memories (program
RAM/ROM, data and coefficient RAM), 4 digital serial
inputs, 4 digital serial outputs, 2 separate SPDIF
receivers, a stereo FSDAC, a standard Philips I
interface, a phase-locked loop for the DSP clock
generation and a second phase-locked loop for system
clock generation (internal and external DAC clocks).
4
5
2001 May 07
V
I
I
P
I
f
(THD + N)/S
S/N
CLK_IN
DSPFREQ
DDD
DDA
POWERDOWN
s
SAA7715H
DD
tot
Digital Signal Processor
TYPE NUMBER
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
DAC
SYMBOL
DAC
operating supply voltage
supply current of the digital
part
supply current of the
analog part
total power dissipation
DC supply current of the
total chip in Power-down
mode
sample frequency
total harmonic
distortion-plus-noise to
signal ratio of DAC
signal-to-noise ratio of
DAC
clock input
maximum DSP clock
QFP44
NAME
PARAMETER
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
2
C-bus
10
all pins V
pins V
high activity of the DSP at
DSPFREQ frequency
zero input and output
signal
high activity of the DSP at
DSPFREQ frequency
pin POWERDOWN
enabled
at IIS_WS1, SPDIF1 or
SPDIF2 input
at 0 dB
at 60 dB
code = 0
DIV_CLK_IN = LOW
DIV_CLK_IN = HIGH
1.75 mm
CONDITIONS
SS
4
The SAA7715 can be configured for various audio
applications by downloading the dedicated DSP program
code into the DSP program RAM or using the ROM or a
combination of both. During the ‘Power-down mode’ the
contents of the memories and all other settings will keep
their values. The SAA7715 can be initialized using the
I
Several system application examples, based on this
existing SAA7715, are available for a wide range of audio
applications (e.g car radio DSP, DVD post-processing,
Dolby Pro Logic, PC/USB audio and more) which can be
used as a reference design for customers.
DD
2
C-bus interface.
DESCRIPTION
with respect to
PACKAGE
3.15
32
8.192
16.384
MIN.
3.3
95
20
380
400
44.1
100
11.2896 12.288
85
37
TYP.
Preliminary specification
SAA7715H
3.45
96
24.576
70
MAX.
VERSION
SOT307-2
V
mA
mA
mW
kHz
dB(A)
dB(A)
dB(A)
MHz
MHz
MHz
UNIT
A