HI2570 Datasheet, PDF (1/8 Pages) Intersil Corporation – 1-Bit AD/DA Converter For Audio Application

® _{HI2570, CXD2570}
September 1997
NOT
RECOMMENDED
FOR
NEW
DESIGNS
Converter
For
1-Bit AD/DA
Audio Application
Features
• Two-Channel AD/DA Converters and Their Each Deci-
mation and Oversampling Digital Filter in a Single Chip
• Simplified External Parts with a Built-In Analog Circuit
Around AD Converter
• Distortion
- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.015%
- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.009% (-3dB)
• S/N Ratio (Typical Values when F_S = 16kHz)
- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80dB
- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90dB
• Ripple in the Digital Filter Pass Band . . . . . . . ±0.05dB<
• Attenuation in the Digital Filter Rejection Band. . . 45dB>
Applications
- Telephones, TV Conference Systems, Language Lab-
oratory Equipment, TV Game Equipment and Elec-
tronic Musical Instrument
Ordering Information
PART
NUMBER
HI2570JCQ
CXD2570Q
TEMP.
RANGE (^oC)
PACKAGE
-20 to 55 48 Ld MPQF
-20 to 55 48 Ld MPQF
PKG. NO.
Q48.12x12-S
Q48.12x12-S
Description
The HI2570, CXD2570 is a 1-bit stereo AD/DA converter
which uses a 2nd-order ∆∑ system noise shaper. This LSI is
especially suited for sampling frequency between 8kHz and
32kHz.
Function
• Data Can Be Input/Output at Rate of 1xF_S with a Built-
In Digital Filter
• Multi-Channel Systems can be Connected Using Several
HI2570, CXD2570Qs
• The 32-Slot Serial Data Interface Enables Independent
Selection of Data Frontward Truncation/Rearward
Truncation and MSB First/LSB First
• 512F_S/1024F_S (when F_S = 8 to 16kHz) or 256F_S/512F_S/
768F_S/1024F_S (When F_S = 16 to 32kHz) Can be Used
as the Master Clock
• The Sampling Frequency of Not Only 8kHz or 16kHz, but
32kHz or 44.1kHz Can Be Used for Audio Equipment
• Various Frequency Divided Clocks are Output for LSIs
Connected
Pinout
HI2570, CXD2570 (48 LEAD MQFP)
TOP VIEW
AV_DD3
AOUT1-
AV_SS3
UCLK
XCLK
XV_DD
XTLI
XTLO
XV_SS
AV_SS4
AOUT2-
AV_DD4
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
XSL2
XSL1
XSL0
MLSL
MASL
DV_SS
SOUT
SIN
BCK
LRCK
MS
DV_DD
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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File Number 4122.1