MAX5556ESA+ Maxim Integrated Products, MAX5556ESA+ Datasheet - Page 8

• Manufacturer Part Number: MAX5556ESA+
• Description: IC DAC STEREO AUDIO 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX5556ESA+

• Number Of Bits: 16
• Data Interface: Serial
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Dac Outputs: 2
• Resolution: 16 bit
• Interface Type: Serial (3-Wire)
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.75 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Power Dissipation: 471 mW
• Minimum Operating Temperature: - 40 C
• Supply Current: 13 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power Dissipation (max): -
• Settling Time: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The DAC output of the sigma-delta modulator is fol-
lowed by an analog smoothing filter that attenuates
high-frequency quantization noise. The corner frequen-
cy of the filter is approximately 2 x f
Low-Cost Stereo Audio DACs
Figure 2. Functional Diagram
Figure 3. Load-Impedance Operating Region
8
________________________________________________________________________________________
SDATA
SCLK
LRCLK
MCLK
Integrated Analog Lowpass Filter
MAX5556–MAX5559
INTERFACE
SERIAL
125
100
75
50
25
INTERPOLATOR
INTERPOLATOR
S
.
3
5
LOAD RESISTANCE R
V
DD
SIGMA-DELTA
SIGMA-DELTA
MODULATOR
MODULATOR
10
L
(kΩ)
GND
Following the analog lowpass filter, the analog signal is
routed through internal buffers to OUTR and OUTL. The
buffer can directly drive load resistances larger than
3kΩ and load capacitances up to 100pF (Figure 3).
SAFE OPERATING REGION
15
REFERENCE
INTERNAL
DAC
DAC
Integrated Analog Output Buffer
20
LOWPASS
LOWPASS
ANALOG
ANALOG
FILTER
FILTER
25
BUFFER
BUFFER
OUTL
OUTR