CS4353-CNZ Cirrus Logic Inc, CS4353-CNZ Datasheet - Page 20

• Manufacturer Part Number: CS4353-CNZ
• Description: IC DAC STER 106DB 2VRMS 24QFN
• Manufacturer: Cirrus Logic Inc

Specifications of CS4353-CNZ

• Number Of Converters: 1
• Package / Case: 24-QFN
• Number Of Bits: 24
• Data Interface: Serial
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 152mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Dac Outputs: 2
• Resolution: 24 bit
• Interface Type: Serial
• Supply Voltage (max): 3.47 V
• Supply Voltage (min): 3.13 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Maximum Power Dissipation: 152 mW
• Minimum Operating Temperature: - 55 C
• Supply Current: 10 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1519 - BOARD EVAL FOR CS4353 DAC
• Settling Time: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1640

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4.10
4.10.1 Capacitor Placement
Grounding and Power Supply Arrangements
As with any high-resolution converter, the CS4353 requires careful attention to power supply and grounding
arrangements if its potential performance is to be realized.
rangements, with VCP, VA, and VL connected to clean supplies. It is strongly recommended that a single
ground plane be used, with the DGND, CPGND, and AGND pins all connected to this common plane.
Should it be necessary to split the ground planes, the DGND and CPGND pins should be connected to the
digital ground plane and the AGND pin should be connected to the analog ground plane. In this configura-
tion, it is critical that the digital and analog ground planes be tied together with a low-impedance connection,
ideally a strip of copper on the printed circuit board, at a single point near the CS4353.
All signals, especially clocks, should be kept away from the VBIAS pin in order to avoid unwanted coupling
into the DAC.
Decoupling capacitors should be placed as close to the device as possible, with the low-value ceramic
capacitor being the closest. To further minimize impedance, these capacitors should be located on the
same PCB layer as the device. If desired, all supply pins may be connected to the same supply, but a
decoupling capacitor should still be placed on each supply pin. See
voltage present across pin pairs. This is useful for choosing appropriate capacitor voltage ratings and ori-
entation if electrolytic capacitors are used.
The CDB4353 evaluation board demonstrates the optimum layout and power supply arrangements.
Figure 3
shows the recommended power ar-
DC Electrical Characteristics
CS4353
DS803F1
for the