PCM1808 Datasheet, PDF (6/23 Pages) Burr-Brown (TI) – SINGLE-ENDED, ANALOG-INPUT 24-BIT, 96-kHz STEREO A/D CONVERTER

PCM1808
SLES177A – APRIL 2006 – REVISED AUGUST 2006
Functional Block Diagram
V_INL
V_REF
V_INR
Antialias
LPF
Reference
Antialias
LPF
Delta-Sigma
Modulator
Delta-Sigma
Modulator
×1/64
Decimation
Filter
with
High-Pass Filter
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Serial
Interface
Mode/
Format
Control
BCK
LRCK
DOUT
FMT
MD1
MD0
Power Supply
Clock and Timing Control
SCKI
V_CC AGND DGND V_DD
B0004-10
TYPICAL PERFORMANCE CURVES OF INTERNAL FILTERS
All specifications at T_A = 25°C, V_CC = 5 V, V_DD = 3.3 V, master mode, f_S = 48 kHz, system clock = 512 f_S, 24-bit data, unless
otherwise noted.
DECIMATION FILTER FREQUENCY RESPONSE
50
0
−50
−100
−150
−200
0
OVERALL CHARACTERISTICS
8
16
24
Normalized Frequency [× f_S]
Figure 1.
32
G001
STOP-BAND ATTENUATION CHARACTERISTICS
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0.00
0.25
0.50
0.75
Frequency [× f_S]
Figure 2.
1.00
G002
6
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