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CS4373A Arkusz danych(PDF) 4 Page - Cirrus Logic |
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CS4373A Arkusz danych(HTML) 4 Page - Cirrus Logic |
4 / 34 page CS4373A 4 DS699F2 1. CHARACTERISTICS AND SPECIFICATIONS • Min / Max characteristics and specifications are guaranteed over the Specified Operating Conditions. • Typical performance characteristics and specifications are measured at nominal supply voltages and TA = 25°C. • GND = 0 V. Single-ended voltages with respect to GND, differential voltages with respect to opposite half. • Device is connected as shown in Figure 6 on page 17, unless otherwise noted. SPECIFIED OPERATING CONDITIONS Notes: 1. VA- must always be the most-negative input voltage to avoid potential SCR latch-up conditions. 2. By design, a 2.500 V voltage reference input results in the best signal-to-noise performance. 3. Full-scale accuracy is directly proportional to the voltage reference absolute accuracy. 4. VREF inputs must satisfy: VA- < VREF- < VREF+ < VA+. Parameter Symbol Min Nom Max Unit Bipolar Power Supplies Positive Analog ± 2% VA+ 2.45 2.50 2.55 V Negative Analog (Note 1) ± 2% VA- -2.45 -2.50 -2.55 V Positive Digital ± 3% VD 3.20 3.30 3.40 V Voltage Reference Input {VREF+} - {VREF-} (Note 2, 3) VREF - 2.500 - V VREF- (Note 4)VREF- - VA - - V Thermal Ambient Operating Temperature Industrial (-IS, -ISZ) TA -40 25 85 °C Modes of Operation Selection MODE[2:0] Mode Description 0 0 0 0 Sleep mode. 1 0 0 1 AC OUT and BUF outputs. 2 0 1 0 AC OUT only, BUF high-z. 3 0 1 1 AC BUF only, OUT high-z. 4 1 0 0 DC common mode output. 5 1 0 1 DC differential output. 6 1 1 0 AC common mode output. 7 1 1 1 Sleep mode. Attenuation Selection ATT[2:0] Attenuation dB 0 000 1/1 0 dB 1 0 0 1 1/2 -6.02 dB 2 0 1 0 1/4 -12.04 dB 3 0 1 1 1/8 -18.06 dB 4 1 0 0 1/16 -24.08 dB 5 1 0 1 1/32 -30.10 dB 6 1 1 0 1/64 -36.12 dB 7 1 1 1 reserved reserved Table 1. Selections for Operational Mode and Attenuation |
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