The PCM1772 and PCM1773 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, lineout circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages

PCM1772

Manufacturer Part NumberPCM1772
DescriptionThe PCM1772 and PCM1773 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, lineout circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages
ManufacturerTexas Instruments
PCM1772 datasheet
 


Specifications of PCM1772

# Dacs2# Inputs / # Outputs0 / 2
ArchitectureMultilevel Delta-SigmaResolution(bits)24
Sampling Rate(max)(khz)48Control InterfaceSPI
Digital Audio InterfaceL,R,I2SThd+n(typ)(%)0.007
Dac Snr(typ)(db)98Power Consumption(typ)(mw)6.5
Operating Temperature Range(c)0 to 70Analog Voltage Av/dd(min)(v)1.6
Analog Voltage Av/dd(max)(v)3.6Pin/package16TSSOP, 20VQFN
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PCM1772, PCM1773
SLES010G – SEPTEMBER 2001 – REVISED MARCH 2007
LRCK
Audio
DATA
Interface
BCK
(FMT) MS
SPI
(AMIX) MC
Port
(DEMP) MD
Clock Manager
SCKI
( ) : PCM1773
All specifications at T
= 25°C, V
A
CC1
DIGITAL FILTER
Digital Filter (De-Emphasis Off)
AMPLITUDE
vs
FREQUENCY
0
−20
−40
−60
−80
−100
−120
−140
0
1
2
f – Frequency [ f
Figure 1.
8
FUNCTIONAL BLOCK DIAGRAM
Digital
Attenuator
8
Digital
DAC
Filter
8
Digital
DAC
Filter
PD
AGND1
TYPICAL PERFORMANCE CURVES
= V
= 2.4 V, f
= 44.1 kHz, system clock = 256 f
CC2
S
otherwise noted.
0.05
0.04
0.03
0.02
0.01
0.00
−0.01
−0.02
−0.03
−0.04
−0.05
3
4
0.0
]
S
G001
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AIN
Lineout
Amplifier
+
V
R
OUT
V
V
COM
COM
+
V
L
OUT
Power Supply
V
V
CC1
CC2
AGND2
B0001-01
and 24-bit data, R
= 10 k , unless
S
L
AMPLITUDE
vs
FREQUENCY
0.1
0.2
0.3
0.4
f – Frequency [ f
]
S
Figure 2.
0.5
G002