Datasheet
ELECTRICAL CHARACTERISTICS: ADC Characteristics
PCM3168A
PCM3168A-Q1
www.ti.com
......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
All specifications at T
A
= +25 ° C, VCCAD1 = VCCAD2 = VCCDA1 = VCCDA2 = 5 V, VDD1 = VDD2 = 3.3 V, f
S
= 48 kHz,
SCKI = 512 f
S
, 24-bit data, Sampling Mode = Auto for ADC and DAC, and Interface Mode = Slave for ADC and DAC, unless
otherwise noted.
PCM3168A, PCM3168A-Q1
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ADC CHARACTERISTICS
Resolution 16 24 Bits
0.2 ×
V
IN
= 0 dB, Single-ended V
RMS
VCCAD1
Full-scale input voltage
0.4 ×
V
IN
= 0 dB, Differential V
RMS
VCCAD1
0.5 ×
Center voltage V
VCCAD1
Input impedance 45 k Ω
Common-mode rejection ratio 80 dB
DC ACCURACY
Gain mismatch channel-to-channel Full-scale input, V
IN
± 2.0 ± 6 % of FSR
Gain error Full-scale input, V
IN
± 2.0 ± 6 % of FSR
Bipolar zero error High-pass filter bypass, V
IN
± 1.0 % of FSR
DYNAMIC PERFORMANCE
(1) (2)
f
S
= 48 kHz, Differential – 93 – 87 dB
f
S
= 96 kHz, Differential – 93 dB
THD+N, V
IN
= – 1 dB
f
S
= 48 kHz, Single-ended – 93 dB
f
S
= 96 kHz, Single-ended – 93 dB
f
S
= 48 kHz, A-weighted, differential 100 107 dB
f
S
= 96 kHz, A-weighted, differential 107 dB
f
S
= 48 kHz, A-weighted,
Dynamic range
104 dB
single-ended
f
S
= 96 kHz, A-weighted,
104 dB
single-ended
f
S
= 48 kHz, A-weighted, differential 100 107 dB
f
S
= 96 kHz, A-weighted, differential 107 dB
f
S
= 48 kHz, A-weighted,
S/N ratio
104 dB
single-ended
f
S
= 96 kHz, A-weighted,
104 dB
single-ended
f
S
= 48 kHz, Differential 98 104 dB
f
S
= 96 kHz, Differential 104 dB
Channel separation
(between one channel and others)
f
S
= 48 kHz, Single-ended 101 dB
f
S
= 96 kHz, Single-ended 101 dB
(1) In differential mode at VINx ± pin, f
IN
= 1 kHz, using Audio Precision System II, RMS mode with 20-kHz low-pass filter and 400-Hz
high-pass filter.
(2) f
S
= 48 kHz : SCKI = 512 f
S
(single), f
S
= 96 kHz : SCKI = 256 f
S
(dual), f
S
= 192 kHz : SCKI = 128 f
S
(quad).
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Product Folder Link(s): PCM3168A PCM3168A-Q1