CS43130 Datasheet, PDF (17/137 Pages) Cirrus Logic – 130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver

CS43130
3 Characteristics and Specifications
Table 3-8. Combined DAC Digital, On-Chip Analog and HPOUTx Filter Characteristics (Cont.)
Test conditions (unless specified otherwise): The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired
sample rate by multiplying the given characteristic by Fs. Single-Speed Mode refers to 32-, 44.1-, and 48-kHz sample rates. Double-Speed Mode refers
to 88.2- and 96-kHz sample rates. Quad-Speed Mode refers to 176.4- and 192-kHz sample rates. Octuple-Speed Mode refers to 352.8- and 384-kHz
sample rates. MCLK_INT is an integer multiple of Fs; HPF disabled; no DC offset applied; group delay does not include serial port delay.
Parameter
Minimum
Slow Roll-Off
Passband ²
(FILTER_SLOW_FASTB = 1)
Single-Speed Mode ¹
to –0.01-dB corner 0
to –3-dB corner 0
attenuation @ Fs/2 6.45 ¹¹
Passband ripple 10 Hz to –0.01-dB corner ⁵
–0.01
Stopband
0.583
Stopband attenuation ⁶
64
Group delay (linear phase)
PHCOMB_LOWLATB = 1 —
Typical
—
—
—
—
—
—
34.5/Fs
12
Maximum Units
0.417 Fs
0.49
Fs
—
dB
+0.01 dB
—
Fs
—
dB
—
s
Group delay (minimum phase)
PHCOMB_LOWLATB = 0 —
5.6/Fs ¹³
—
s
Deemphasis error ¹⁰
(Relative to 1 kHz)
Fs = 44.1 kHz —
—
±0.14 dB
Slow Roll-Off
Passband ²
(FILTER_SLOW_FASTB = 1)
Double-Speed Mode ¹
to –0.01-dB corner 0
to –3-dB corner 0
attenuation @ Fs/2 7
—
0.208 Fs
—
0.458 Fs
—
—
dB
Passband ripple 10 Hz to –0.01-dB corner
–0.01
—
0.01 dB
Stopband
0.792
—
—
Fs
Stopband attenuation ⁶
70
—
—
dB
Group delay (linear phase)
PHCOMB_LOWLATB = 1 —
22.3/Fs
—
s
Group delay (minimum phase)
Slow Roll-Off
Passband ²
(FILTER_SLOW_FASTB = 1)
Quad-Speed Mode ¹
PHCOMB_LOWLATB = 0 —
to –0.01-dB corner 0
to –3-dB corner 0
attenuation @ Fs/2 7.00
6.7/Fs
—
—
—
—
s
0.104 Fs
0.43
Fs
—
dB
Passband ripple 10 Hz to –0.01-dB corner
–0.01
—
0.01 dB
Stopband
Stopband attenuation ⁶
0.792
—
75
—
—
Fs
—
dB
Group delay (linear phase)
PHCOMB_LOWLATB = 1 —
20.7/Fs
—
s
Nonoversampling (NOS)
(NOS = 1)
Single-Speed Mode ¹
Group delay (minimum phase)
Passband ²
Passband droop 10 Hz to 20 kHz
Group delay
PHCOMB_LOWLATB = 0 —
to –0.01-dB corner 0
to –3-dB corner 0
—
—
10.6/Fs
—
s
—
0.026 Fs
—
0.444 Fs
—
3.2 ¹⁴ dB
2.7/Fs
—
s
Nonoversampling (NOS)
(NOS = 1)
Double-Speed Mode ¹
Passband ²
Passband droop 10 Hz to 20 kHz
to –0.01-dB corner 0
to –3-dB corner 0
—
—
0.0246 Fs
—
0.446 Fs
—
0.73 dB
Group delay
—
4.5/Fs
—
s
Nonoversampling (NOS)
(NOS = 1)
Quad-Speed Mode ¹
Passband ²
Passband droop 10 Hz to 20 kHz
to –0.01-dB corner 0
to –3-dB corner 0
—
—
0.026 Fs
—
0.405 Fs
—
0.167 dB
Octuple-Speed Mode ¹
Group delay
Passband ²
—
to –0.01-dB corner 0
to –3-dB corner 0
8.4/Fs
—
s
—
0.0299 Fs
—
0.302 Fs
Passband droop 10 Hz to 20 kHz
—
—
0.037 dB
Group delay
—
17/Fs
—
s
1. Filter response is by design.
2. Response is clock-dependent and scales with Fs.
3. 8.5 dB for 32-kHz sample rate.
4. 0.454 Fs for 32-kHz sample rate.
5. Filter ripple specification is invalid with deemphasis enabled.
6. For Single-Speed Mode, the measurement bandwidth is from stopband to 3 Fs.
For Double-Speed Mode, the measurement bandwidth is from stopband to 3 Fs.
For Quad-Speed Mode, the measurement bandwidth is from stopband to 1.34 Fs.
7.105 dB for 32-kHz sample rate.
8. 39/Fs for 32-kHz sample rate.
9. 5.9/Fs for 32-kHz sample rate.
10. Deemphasis is available only in 44.1 kHz.
11. 6.5 dB for 32-kHz sample rate.
12. 34/Fs for 32-kHz sample rate.
DS1073F1
17