A3983_08 Datasheet, PDF (3/32 Pages) Allegro MicroSystems – DMOS Microstepping Driver with Translator

SPECIFICATIONS
TEST CONDITIONS
Standard Test Conditions
Unless otherwise noted:
• Temperature
• Digital Supply (DVDD)
• Analog Supply (AVDD)
• Sample Rate (fS)
• Input Signal
• Analog Output Pass Band
25°C
3.3 V
5.0 V
48 kHz
1 kHz
20 Hz to 20 kHz
Table 1.
Parameter
ANALOG INPUT
Input Voltage (RMS Values Assume Sine Wave Input)
LINE_IN, CD, AUX, PHONE_IN
MIC_IN with 30 dB Preamp
MIC_IN with 20 dB Preamp
MIC_IN with 10 dB Preamp
MIC_IN with 0 dB Gain
Input Impedance¹
Input Capacitance¹
MASTER VOLUME
Step Size (Line Out, Mono Out, Surround Out, Center, LFE)
Output Attenuation Range Span¹
Mute Attenuation of 0 dB Fundamental¹
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
PGA Gain Range Span
ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Signal-to-Noise Ratio (SNR)
CD to LINE_OUT
LINE, AUX, or PHONE to LINE_OUT¹
MIC1 or MIC2 (Note: MIC Gain of 0 dB) to LINE_OUT¹
Step Size All Mixer Inputs
Input Gain/Attenuation Range: All Mixer Inputs
DIGITAL DECIMATION AND INTERPOLATION FILTERS¹
Pass Band
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Rejection
Group Delay
Group Delay Variation over Pass Band
AD1888
DAC Test Conditions
• Calibrated
• −3 dB attenuation relative to full scale
• 0 dB input
• 10 kΩ output load LINE_OUT, MONO_OUT, CENTER_OUT,
and LFE_OUT
• 32 Ω output load (HP_OUT)
ADC Test Conditions
• Calibrated
• 0 dB gain
• Input −3.0 dB relative to full scale
Min
Typ Max
Unit
1
2.83
0.032
0.089
0.1
0.283
0.316
0.894
1
2.83
20
5
7.5
1.5
46.5
80
1.5
22.5
V rms
V p-p
V rms
V p-p
V rms
V p-p
V rms
V p-p
V rms
V p-p
KΩ
pF
dB
dB
dB
dB
dB
90
dB
90
dB
90
dB
1.5
dB
46.5
dB
0
0.4 × fS
Hz
±0.09
dB
0.4 × fS
0.6 × fS
Hz
0.6 × fS
∞
Hz
−74
dB
16/fS
sec
0
μs
Rev. A | Page 3 of 32