ADC Dual Delta-Sigma 50ksps 16-bit Serial (2-Wire, 3-Wire, I2C, SPI) 24-Pin DSBGA T/R, PCM1870AYZFT, Texas Instruments

The PCM1870 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 24-QFN(4-mm × 5-mm) and 24-DSBGA (2.49-mm × 3.49-mm) packages to save footprint. The PCM1870 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.

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 f_S/384 f_S), 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
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-QFN (4 mm × 5 mm)
24-DSBGA (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

Характеристики

Volt_supply_source	Analog and Digital
Number_of_analog_inputs	4, 2
Sampling_rate	50 ksps
Digital_supply_support	Yes
Architecture	Delta-Sigma
Resolution	16 Bit
Typical_power_dissipation	26.4 mW
Signal_to_noise_ratio	90 dB
Input_type	Voltage
Input_signal_type	Differential, Single-Ended
Input_volt	2.828 Vp-p
Бренд	Texas Instruments
Msl_level	1
Country_of_origin	United States
Eccn	EAR99
Htsn	8542390001
Lead_finish	Tin/Silver/Copper
Max_power_dissipation	39.6 mW
Max_processing_temp	260
Mounting	Surface Mount
Operating_temp	-40 to 85 °C
Pin_count	24
Product_dimensions	3 x 2 x 0.38 mm
Schedule_b	8542390000
Specifications	http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=PCM1870A&&fileType=pdf
Supplier_package	DSBGA
Operating_supply_volt	2.4, 3.3 V, 3.6
Number_of_adcs	2
Digital_interface_type	Serial (2-Wire, 3-Wire, I2C, SPI)

Артикул: PCM1870AYZFT

Описание