ADSP-BF525C 查看數據表（PDF） - Analog Devices
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ADSP-BF525C Datasheet PDF : 36 Pages
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ADSP-BF522C/ADSP-BF523C/ADSP-BF524C/ADSP-BF525C/ADSP-BF526C/ADSP-BF527C
SPECIFICATIONS
TAmbient = 25°C, AVDD = VDDEXT = 3.3 V, HPVDD = 3.3 V,
1 kHz signal, fS = 48 kHz, PGA gain = 0 dB, 24-bit audio data,
unless otherwise noted.
OPERATING CONDITIONS
See operating conditions in the published ADSP-BF52xC
data sheet.
Parameter
AVDD1
HPVDD
Conditions
1 Note that AVDD must equal HPVDD.
CODEC ELECTRICAL CHARACTERISTICS
Parameter
Line Input
Input Signal Level (0 dB)
Input Impedance
Input Capacitance
Signal-to-Noise Ratio (A-Weighted)
Total Harmonic Distortion (THD)
Channel Separation1
Programmable Gain
Gain Step
Mute Attenuation
Microphone Input
Input Signal Level
Signal-to-Noise Ratio (A-Weighted)
Total Harmonic Distortion
Power Supply Rejection Ratio
Mute Attenuation
Input Resistance
Input Capacitance
Microphone Bias
Bias Voltage
Bias Current Source
Noise in the Signal Bandwidth
Conditions
PGA gain = 0 dB
PGA gain = +33 dB
PGA gain = –34.5 dB
PGA gain = 0 dB, AVDD = 3.3 V
PGA gain = 0 dB, AVDD = 1.8 V
–1 dBFS input, AVDD = 3.3 V
–1 dBFS input, AVDD = 1.8 V
Microphone gain = 0 dB (RSOURCE = 40 kΩ)
–1 dBFS input, 0 dB gain, AVDD = 3.3 V
–1 dBFS input, 0 dB gain, AVDD = 1.8 V
20 Hz to 20 kHz
Min Typical
1.8 3.3
1.8 3.3
Max Unit
3.6 V
3.6 V
Min Typical Max Unit
AVDD/3.3
200
10
480
10
82 87
84
–80 –84
–71
80
–34.5 0
1.5
–80
V(rms)
kΩ
kΩ
kΩ
pF
dB
dB
dB
–60 dB
dB
+33.5 dB
dB
dB
1
V(rms)
85
dB
–75
dB
–65
dB
50
dB
80
dB
10
kΩ
10
pF
0.75 × AVDD
3
40
V
mA
nV/√Hz
Rev. A | Page 21 of 36 | March 2010
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