Texas Instruments PCM2704, Manual

Page: 10 / 43

TYPICAL PERFORMANCE CURVES OF INTERNAL FILTER
DAC Digital Interpolation Filter Frequency Response
f – Frequency [
×
f
S
]
−140
−120
−100
−80
−60
−40
−20
0
0 1 2 3 4
Amplitude – dB
G001
f – Frequency [
×
f
S
]
−0.05
−0.04
−0.03
−0.02
−0.01
0.00
0.01
0.02
0.03
0.04
0.05
0.0 0.1 0.2 0.3 0.4 0.5
Amplitude – dB
G002
DAC Analog Low-Pass Filter Frequency Response
−2.0
−1.5
−1.0
−0.5
0.0
f – Frequency – kHz
Amplitude – dB
0.01 1 10 100 0.1
G003
−80
−60
−40
−20
0
f – Frequency – kHz
Amplitude – dB
1 100 1k 10k 10
G004
PCM2704
,,
PCM2705
PCM2706, PCM2707
SLES081F – JUNE 2003 – REVISED JANUARY 2009 ....................................................................................................................................................... www.ti.com
All specifications at T
A
= 25°C, V
BUS
= 5 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data (unless otherwise noted).
AMPLITUDE AMPLITUDE
vs vs
FREQUENCY FREQUENCY
Figure 1. Frequency Response Figure 2. Pass-Band Ripple
AMPLITUDE AMPLITUDE
vs vs
FREQUENCY FREQUENCY
Figure 3. Pass-Band Characteristics Figure 4. Stop-Band Characteristics
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