Datasheet

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Power-Supply Current
PCM1870
SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007
The current consumption of the PCM1870 depends on the power-up/down status of each circuit module. In order
to save power consumption, disabling each module is recommended when it is not used in an appliction or
operation. Table 5 shows current consumtption in some states.
Table 5. Power Consumption Table
POWER SUPPLY CURRENT [mA] PD [mW]
OPERATION MODE
V
DD
V
DD
V
CC
V
IO
TOTAL TOTAL
(1.8 V) (3.3 V) (3.3 V) (3.3 V) (V
DD
= 1.8 V) (V
DD
= 3.3 V)
ALL POWER DOWN 0.000 0.000 0.001 0.000 0.003 0.003
Recording (f
S
= 48 kHz)
Line input (AIN2L/AIN2R) 1.78 3.71 4.58 0.10 18.3 27.7
Mic input (AIN1L/AIN1R, 20 dB) 1.79 3.71 5.06 0.10 19.9 29.3
Mic input (AIN1L/AIN1R, 20 dB) with ALC 2.73 5.59 5.06 0.10 21.6 35.5
Mono mic input (AIN1L, 20 dB) 1.33 2.80 3.56 0.10 14.1 21.3
Mono mic input (AIN1L, 20 dB) with ALC 2.21 4.60 3.56 0.10 15.7 27.3
Mono diff mic input (AIN1L/AIN1R, 20 dB) 1.33 2.80 3.88 0.10 15.2 22.4
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC 2.21 4.60 3.88 0.10 16.8 28.3
Recording (f
S
= 22.05 kHz)
Line input (AIN2L/AIN2R) 0.82 1.66 3.71 0.10 13.7 18.1
Mic input (AIN1L/AIN1R, 20 dB) 0.82 1.66 4.20 0.10 15.3 19.7
Mic input (AIN1L/AIN1R, 20 dB) with ALC 1.26 2.55 4.20 0.10 16.1 22.6
Mono mic input (AIN1L, 20 dB) 0.61 1.23 2.74 0.10 10.1 13.4
Mono mic input (AIN1L, 20 dB) with ALC 1.03 2.10 2.74 0.10 10.9 1.63
Mono diff mic input (AIN1L/AIN1R, 20 dB) 0.61 1.23 3.06 0.10 11.2 14.5
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC 1.02 2.08 3.06 0.10 11.9 17.3
Recording (f
S
= 16 kHz)
Line input (AIN2L/AIN2R) 0.59 1.18 3.51 0.10 12.7 15.8
Mic input (AIN1L/AIN1R, 20 dB) 0.59 1.18 3.99 0.10 14.2 17.4
Mic input (AIN1L/AIN1R, 20 dB) with ALC 0.91 1.85 3.99 0.10 14.8 19.6
Mono mic input (AIN1L, 20 dB) 0.44 0.87 2.55 0.10 9.2 11.6
Mono mic input (AIN1L, 20 dB) with ALC 0.75 1.52 2.55 0.10 9.8 13.8
Mono diff mic input (AIN1L/AIN1R, 20 dB) 0.44 0.87 2.87 0.10 10.3 12.7
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC 0.74 1.50 2.87 0.10 10.8 14.8
Recording (f
S
= 8 kHz)
Line input (AIN2L/AIN2R) 0.29 0.54 3.23 0.10 11.2 12.8
Mic input (AIN1L/AIN1R, 20 dB) 0.29 0.54 3.72 0.10 12.8 14.4
Mic input (AIN1L/AIN1R, 20 dB) with ALC 0.46 0.88 3.72 0.10 13.1 15.5
Mono mic input (AIN1L, 20 dB) 0.22 0.39 2.29 0.10 8.0 9.2
Mono mic input (AIN1L, 20 dB) with ALC 0.37 0.70 2.29 0.10 8.2 10.2
Mono diff mic input (AIN1L/AIN1R, 20 dB) 0.22 0.39 2.61 0.10 9.0 10.2
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC) 0.37 0.70 2.61 0.10 9.3 11.3
Condition: 256 f
S
, 16 bits, slave mode, zero data input, no load
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