Harman Kardon HD750, Техническое руководство

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HD750
®
PCM1732
SPECIFICATIONS
24-Bit Data Performance
All specifications at +25
°
C, +V
CC
= +V
DD
= +5V, f
S
= 44.1kHz, and SYSCLK = 384f
S
, unless otherwise noted.
PCM1732
PARAMETER CONDITIONS MIN TYP MAX UNITS
RESOLUTION 24 Bits
DATA FORMAT
Audio Data Interface Format
Standard/I 2 S
Data Bit Length 16/20/24 Selectable
Audio Data Format MSB-First, Binary Two’s Complement
Sampling Frequency (f
S
) 16 96 kHz
System Clock Frequency
(1)
256/384/512/768f
S
System Clock Duty Cycle 40 60 %
DIGITAL INPUT/OUTPUT LOGIC LEVEL
Input Logic Level (except XTI): V
IH
2.0 V
V
IL
0.8 V
Output Logic Level (CLKO): V
OH
I
OH
= 2mA 4.5 V
V
OL
I
OL
= 4mA 0.5 V
CLKO PERFORMANCE
(2)
Output Rise Time 20 ~ 80% V
DD
, 10pF 5.5 ns
Output Fall Time 80 ~ 20% V
DD
, 10pF 4 ns
Output Duty Cycle 10pF Load 30 %
DYNAMIC PERFORMANCE
(3, 4)
THD+N V
O
= 0dB f
S
= 44.1kHz –96 –90 dB
f
S
= 96kHz –94 dB
V
O
= –60dB f
S
= 44.1kHz –42 dB
Dynamic Range f
S
= 44.1kHz, EIAJ A-weighted 98 104 dB
f
S
= 96kHz, A-weighted 103 dB
Signal-to-Noise Ratio
(5)
f
S
= 44.1kHz, EIAJ A-weighted 98 104 dB
f
S
= 96kHz, A-weighted 103 dB
Channel Separation f
S
= 44.1kHz 96 104 dB
f
S
= 96kHz 101 dB
DC ACCURACY
Gain Error
±
1.0
±
3.0 % of FSR
Gain Mismatch Channel-to-Channel
±
1.0
±
3.0 % of FSR
Bipolar Zero Error V
O
= 0.5V
CC
at Bipolar Zero
±
30
±
60 mV
ANALOG OUTPUT
Output Voltage
(6)
Full Scale (0dB) 0.57 V
CC
Vp-p
Center Voltage 0.5 V
CC
V
Load Impedance AC Load 5 k
Ω
DIGITAL FILTER PERFORMANCE
Filter Characteristics 1
(f
S
= 44.1kHz/48kHz optimal)
Passband
±
0.002dB 0.471f
S
–3dB 0.487f
S
Stopband 0.515f
S
Passband Ripple < 0.453f
S
±
0.0001 dB
Stopband Attenuation Stopband = 0.515f
S
–109 dB
Stopband = 0.520f
S
–123 dB
Delay Time 81/f
S
sec
Filter Characteristics 2
(f
S
= 88.2kHz/96kHz optimal)
Passband
±
0.005dB 0.395f
S
–3dB 0.441f
S
Stopband 0.538f
S
Passband Ripple < 0.341f
S
±
0.0001 dB
Stopband Attenuation Stopband = 0.538f
S
–132 dB
Delay Time 31/f
S
sec
De-Emphasis Error
±
0.1 dB
INTERNAL ANALOG FILTER
–3dB Bandwidth
100 kHz
Passband Response f = 20kHz –0.16 dB
POWER SUPPLY REQUIREMENTS
Voltage Range
V
DD,
V
CC
4.5 5 5.5 VDC
Supply Current: I
CC
+ I
DD
f
S
= 44.1kHz 35 105 mA
f
S
= 96kHz 93 mA
Power Dissipation f
S
= 44.1kHz 425 525 mW
f
S
= 96kHz 465 mW
TEMPERATURE RANGE
Operating
–25 +70
°
C
Storage –55 +100
°
C
Thermal Resistance,
θ
JA
67
°
C/W
NOTES: (1) Refer to the System Clock section of this data sheet. (2) An external buffer is recommended. (3) Dynamic performance specifications are tested with 20kHz low-pass
filter and THD+N specifications are tested with 30kHz LPF, 400Hz HPF, Average Mode. (4) Dynamic performance specifications are tested with HDCD gain scaling set to analog
gain scaling. (5) SNR is tested with infinite zero detection off. (6) Output level is for sine wave. DAC outputs 0.64 V
CC
(peak-to-peak) due to filter response as transient.
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