Datasheet

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PCM1774
SLAS551 – JULY 2007
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25 ° C, V
DD
= V
IO
= V
CC
= V
PA
= 3.3 V, f
S
= 48 kHz, system clock = 256 f
S
, and 16-bit data (unless
otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Load resistance 16 Ω
200 Hz, 140 mV
PP
–40
PSRR Power-supply rejection ratio 1 kHz, 140 mV
PP
–45 dB
20 kHz, 140 mV
PP
–32
Line Input to Headphone Output Through Mixing Path (HPOL and HPOR)
R
L
= 16 Ω or 32 Ω , ALC = OFF, volume = 0 dB, speaker = powered down, analog mixing = enabled, not capless mode
DYNAMIC PERFORMANCE
2.828 V
PP
Full-scale output voltage 0 dB
1 Vrms
SNR Signal-to-noise ratio EIAJ, A-weighted 84 93 dB
Load resistance 16 Ω
Filter Characteristics
INTERPOLATION FILTER FOR DAC
Pass band 0.454 f
S
Stop band 0.546 f
S
Pass-band ripple ± 0.04 dB
Stop-band attenuation –50 dB
Group delay 19/f
s
s
De-emphasis error ± 0.1 dB
ANALOG FILTER
Frequency response f = 20 kHz ± 0.2 dB
Power Supply and Supply Current
V
IO
1.71 3.3 3.6
V
DD
1.71 3.3 3.6
Voltage range Vdc
V
CC
2.4 3.3 3.6
V
PA
2.4 3.3 3.6
BPZ input, all active, no load 4.5 10 mA
Supply current
All inputs are held static 1 10 μ A
BPZ input 14.8 33 mW
Power dissipation
All inputs are held static 3.3 33 μ W
Temperature Condition
Operation temperature –40 85 ° C
θ
JA
Thermal resistance 40 ° C/W
4
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