PCM3168APAPR datasheet(53/66 Pages) TI1

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10 F

0.1 F

22pF

VIN+

(1V

)

RMS

VIN-

(1V

)

RMS

VCOMAD

AnalogInput

(2V

)

RMS

1.5kW

470pF

10 F

0.1 F

4.7kW

470pF

VIN-

(1V

)

RMS

VIN+

(1V

)

RMS

VCOMAD

AnalogInput

(2V

)

RMS

3.3V

(1)

(2)

(3)

(4)

PCM3168A

www.ti.com

SBAS452A – SEPTEMBER 2008 – REVISED JANUARY 2016

10.3 System Examples

10.3.1 Typical Circuit Connections

Termination for mode control: Any one of the circuits shown in Figure 57 must be applied according to the

necessary mode or configuration. Resistor value must be 220-k

Ω, ±5% tolerant. The PowerPAD must be tied to

the ground plane with enough electrical and thermal conductivity; see the example board layout in Figure 54.

Figure 57. Typical Circuit Connections

Typical interface circuits for analog input and analog output are shown in Figure 58 through Figure 62.

Amplifier is an NE5532A x2 or OPA2134 x2; R1 = 1.5-kΩ resistor;

Amplifier is an NE5532A x1 or OPA2134 x1; R1 = 3-kΩ resistor; R2

R2 = 750-Ω resistor; R3 = 47-Ω resistor; C1 = 3300-pF capacitor; C2

= 1.5-k

Ω resistor; R3 = 47-Ω resistor; C1 = 2200-pF capacitor; C2 =

= 0.01-

μF capacitor; Gain = 1; f–3 dB = 45 kHz.

0.01-

μF capacitor; Gain = 1; f–3 dB = 48 kHz.

Figure 58. Single-Ended to Differential Buffer and

Figure 59. Single-Ended to Differential Buffer and

Anti-Aliasing LPF For Differential ADC Input

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