PCM2704C_15 Datasheet, PDF (10/47 Pages) Texas Instruments – PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output andS/PDIF Output

PCM2704C, PCM2705C, PCM2706C, PCM2707C
SBFS036B – MAY 2015 – REVISED AUGUST 2015
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Electrical Characteristics: PCM2704CDB, PCM2705CDB, PCM2706CPJT,
PCM2707CPJT (continued)
All specifications at T_A = 25°C, V_BUS = 5 V, ƒ_S = 44.1 kHz, ƒ_IN = 1 kHz, and 16-bit data (unless otherwise noted). For the Host
interface, apply USB revision 1.1, full-speed. For audio data format, use USB isochronous data format.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
ANALOG OUTPUT
Output voltage
Center voltage
Load impedance
Line
Headphone
AC-coupling
AC-coupling
0.55 V_CCL
0.55 V_CCR
V_PP
0.5 V_CCP
V
10
kΩ
16
32
Ω
LPF frequency response
–3 dB
ƒ = 20 kHz
140
kHz
–0.1
dB
DIGITAL FILTER PERFORMANCE
Passband
Stop band
Passband ripple
0.546 ƒ_S
0.454 ƒ_S
Hz
Hz
±0.04
dB
Stop band attenuation
–50
dB
Delay time
POWER SUPPLY REQUIREMENTS
20 / ƒ_S
s
Voltage range
Supply current
V_BUS
V_CCP, V_CCL, V_CCR, V_DD
Line
Headphone
Line/headphone
Bus-powered
Self-powered
DAC operation
DAC operation (R_L = 32 Ω)
Suspend mode ⁽⁶⁾
4.35
3
5
5.25
3.3
3.6
V_DC
23
30
mA
35
46
150
190
μA
Power dissipation
(self-powered)
Line
Headphone
Line/headphone
DAC operation
DAC operation (R_L = 32 Ω)
Suspend mode ⁽⁶⁾
76
108
mW
116
166
495
684
μW
Power dissipation
(bus-powered)
Line
Headphone
Line/headphone
DAC operation
DAC operation (R_L = 32 Ω)
Suspend mode ⁽⁶⁾
115
158
mW
175
242
750
998
μW
Internal power-
supply voltage ⁽⁷⁾
V_CCP, V_CCL, V_CCR, V_DD Bus-powered
3.2
3.35
3.5
V_DC
TEMPERATURE RANGE
Operating temperature
–25
85
°C
(6) In USB suspended state
(7) V_DD, V_CCP, V_CCL, V_CCR pins. These pins work as output pins of internal power supply for bus-powered operation.
10
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