Masterclock TCDS Series Dokumentacja Pobierz pdf (Strona 4)

AD1974 Data Sheet

Rev. D | Page 4 of 24

Specifications measured at 125°C (case).

Table 2.

Parameter Conditions Min Typ Max Unit

ANALOG-TO-DIGITAL CONVERTERS

ADC Resolution All ADCs 24 Bits

Full-Scale Input Voltage (Differential) 1.9 V rms

Dynamic Range

20 Hz to 20 kHz, −60 dB input

No Filter (RMS) 95 102 dB

With A-Weighted Filter (RMS) 97 105 dB

Total Harmonic Distortion + Noise (THD + N) −1 dBFS −96 −87 dB

Gain Error −10 +10 %

Interchannel Gain Mismatch

−0.25

+0.25

Offset Error −10 0 +10 mV

REFERENCE

Internal Reference Voltage FILTR pin 1.50 V

External Reference Voltage FILTR pin 1.32 1.50 1.68 V

Common-Mode Reference Output CM pin 1.50 V

CRYSTAL OSCILLATOR SPECIFICATIONS

Table 3.

Parameter Min Typ Max Unit

Transconductance 3.5 Mmhos

DIGITAL INPUT/OUTPUT SPECIFICATIONS

−40°C < T

< +125°C, DVDD = 3.3 V ± 10%.

Table 4.

Parameter Conditions/Comments Min Typ Max Unit

Input Voltage High (V

) 2.0 V

Input Voltage High (V

) MCLKI pin 2.2 V

Input Voltage Low (V

) 0.8 V

Input Leakage I

@ V

= 2.4 V 10 µA

@ V

= 0.8 V 10 µA

High Level Output Voltage (V

) I

= 1 mA DVDD − 0.60 V

Low Level Output Voltage (V

) I

= 1 mA 0.4 V

Input Capacitance 5 pF

1 2 3 4 5 6 7 8 9 ... 23 24

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Masterclock TCDS Series Dokumentacja Strona 4

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