Datasheet

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ELECTRICAL CHARACTERISTICS
PCM1774
SLAS551 – JULY 2007
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
Audio Data Characteristics
DATA FORMAT
Resolution 16 Bits
I
2
S, left-,
Audio data interface format right-justified,
DSP
Audio data bit length 16 Bits
MSB first, 2s
Audio data format
complement
Sampling frequency (f
S
) 5 50 kHz
V
DD
< 2 V 27
System clock MHz
V
DD
> 2 V 40
Digital Input/Output
CMOS
Logic family
compatible
V
IH
0.7 V
IO
Input logic level Vdc
V
IL
0.3 V
IO
I
IH
V
IN
= 3.3 V 10
Input logic current μ A
I
IL
V
IN
= 0 V –10
V
OH
I
OH
= –2 mA 0.75 V
IO
Output logic level Vdc
V
OL
I
OL
= 2 mA 0.25 V
IO
Digital Input to Line Output Through DAC (LOL and LOR)
R
L
= 10 k Ω , volume = 0 dB, analog mixing = disabled
DYNAMIC PERFORMANCE
2.828 V
PP
Full-scale output voltage 0 dB
1 Vrms
Dynamic range EIAJ, A-weighted 93 dB
SNR Signal-to-noise ratio EIAJ, A-weighted 86 93 dB
Channel separation 91 dB
THD+N Total harmonic distortion + noise 0 dB 0.008%
Load resistance 10 k Ω
Line Input to Line Output Through Mixing Path (LOL and LOR)
R
L
= 10 k Ω , volume = 0 dB, analog mixing = enabled
DYNAMIC PERFORMANCE
2.828 V
PP
Full-scale input and output voltage 0 dB
1 Vrms
SNR Signal-to-noise ratio EIAJ, A-weighted 84 93 dB
Digital Input to Headphone Output Through DAC (HPOL and HPOR)
R
L
= 16 Ω or 32 Ω , ALC = OFF, volume = 0 dB, speaker = powered down, analog mixing = disabled, 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
30 mW, R
L
= 32 Ω , 0.1%
volume = 0 dB
THD+N Total harmonic distortion + noise
40 mW, R
L
= 16 Ω , 0.03%
volume = –1 dB
3
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