PCM1870A Audio ADC Datasheet

PCM1870A Datasheet, PDF, Equivalent


Part Number

PCM1870A

Description

16-Bit Low-Power Stereo Audio ADC

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download PCM1870A Datasheet


PCM1870A
PCM1870A
www.ti.com................................................................................................................................................................................................. SLAS617 – AUGUST 2008
16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
FEATURES
1
Analog Front End:
– Stereo Single End Input With MUX
– Mono Differential Input
– Stereo Programmable Gain Amplifier
– Microphone Boost Amplifier and Bias
Analog Performances Dynamic Range: 90 dB
Power-Supply Voltage
– 1.71 V to 3.6 V for Digital I/O Section
– 1.71 V to 3.6 V for Digital Core Section
– 2.4 V to 3.6 V for Analog Section
Low Power Dissipation:
– 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo
– 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono
– 3.3 µW in All Power Down
Sampling Frequency: 5 kHz to 50 kHz
Auto Level Control for Recording
Operation by Single Clock Input Without PLL
System Clock: Common Audio Clock
(256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4,
19.68/39.36 MHz
2 (I2C) or 3 (SPI) Wire Serial Control
Programmable Function by Register Control:
– Digital Soft Mute
– Hi-Z for LRCK, BCK and DOUT
– Power Up/Down Control for Each Module
– 30-dB to –12-dB Gain for Analog Inputs
– 0/12/20-dB Boost for Microphone Input
– Parameter Settings for ALC
– Three-Band Tone Control and 3D Sound
– High-Pass Filter and Two-Stage Notch Filter
Pop Noise Reduction Circuit
Package:
– 24-Pin YZF (2.49 mm × 3.49 mm)
Operation Temperature Range: –40°C to 85°C
APPLICATIONS
Portable Audio Player, Cellular Phone
Video Camcorder, Movie Digital Still Camera
PMP/DMB, Voice Recorder
DESCRIPTION
The PCM1870A is a low-power stereo ADC designed
for portable digital audio applications, with line-input
amplifier, boost amplifier, microphone bias,
programmable gain control, sound effects, and auto
level control (ALC). It is available in a 24-Pin YZF
(2.49-mm × 3.49-mm) package to save footprint. The
PCM1870A accepts right-justified, left-justified, I2S,
and DSP formats, providing easy interfacing to audio
DSP and encoder chips. Sampling rates up to 50 kHz
are supported. The user-programmable functions are
accessible through a 2- or 3-wire serial control port.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated

PCM1870A
PCM1870A
SLAS617 – AUGUST 2008................................................................................................................................................................................................. www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
VDD, VIO, VCC
Supply voltage
Ground voltage differences: DGND, AGND, PGND
Input voltage
Input current (any pins except supplies)
Ambient temperature under bias
Storage temperature
Junction temperature
Lead temperature (soldering)
Package temperature (reflow, peak)
PCM1870A
–0.3 to 4
±0.1
–0.3 to 4
±10
–40 to 110
–55 to 150
150
260 / 5
260
UNIT
V
V
V
mA
°C
°C
°C
°C / s
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicted under recommended operating
conditions is not impled. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliabiltiy.
RECOMMENDED OPERATING CONDITIONS
VCC
VDD, VIO
TA
Analog supply voltage
Digital supply voltage
Digital input logic family
Digital input clock frequency
Digital output load capacitance
Operating free-air temperature
SCKI system clock
LRCK sampling clock
MIN
2.4
1.71
3.072
8
–40
NOM
3.3
3.3
CMOS
MAX
3.6
3.6
UNIT
V
V
18.432
48
10
85
MHz
kHz
pF
°C
2 Submit Documentation Feedback
Product Folder Link(s): PCM1870A
Copyright © 2008, Texas Instruments Incorporated


Features PCM1870A www.ti.com.................... ....................................... ....................................... ....................................... ....................................... ................. SLAS617 – AUGUST 20 08 16-Bit Low-Power Stereo Audio ADC Wi th Microphone Bias and Microphone Ampli fier FEATURES 1 • Analog Front End: – Stereo Single End Input With MUX Mono Differential Input – Stereo Pr ogrammable Gain Amplifier – Microphon e Boost Amplifier and Bias • Analog P erformances Dynamic Range: 90 dB • Po wer-Supply Voltage – 1.71 V to 3.6 V for Digital I/O Section – 1.71 V to 3 .6 V for Digital Core Section – 2.4 V to 3.6 V for Analog Section • Low Po wer Dissipation: – 13 mW in Record, 1 .8/2.4 V, 48 kHz, Stereo – 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono – 3.3 µW in All Power Down • Sampling Freq uency: 5 kHz to 50 kHz • Auto Level C ontrol for Recording • Operation by S ingle Clock Input Without PLL • System Clock: Common Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5.
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