MAX20317EVKIT# by Analog Devices

Universal 3.5mmØ Accessory Management IC

Status: Active
Series: MAX20317
RoHS: Unknown
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The MAX20317 is an I2C controllable, universal 3.5mmØ accessory management IC. The device provides a universal jack interface solution, as well as a compact solution for the power management and interface control of a powered accessory, such as an active noise cancelling (ANC) headset. The MAX20317 automatically measures headset impedance with a high precision, triple current source 8 bit ADC. After impedance detection, the device also detects when a headset is in a CTIA or OMTP configuration and automatically configures the SLEEVE and RING2 terminals to correctly connect the microphone and ground lines. When a boost supply is applied, the MAX20317 can detect the presence of an ANC headset. When the ANC headset is detected and enabled, a button-press monitoring circuit activates and flags button presses by detecting the voltage drop across a sense resistor. The MAX20317 provides a power line communication tool to a headset to exchange the data with the host device. The MAX20317 has the two separate ground sense inputs from the SLEEVE and RING2 terminals of the connector to provide a high ground isolation to the audio codec. The MAX20317 is available in a space-saving, 20-bump, 0.4mm pitch, 1.65mm x 2.05mm wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.

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Features

Allows Wide Range of Applications by Supporting Universal 3.5mm Jack Types Auto-Configuration for CTIA and OMTP Headsets Supports MEMS Microphone 50mΩ Ground Switch
Auto-Configuration for CTIA and OMTP Headsets
Supports MEMS Microphone
50mΩ Ground Switch
Enables Long Utilization of Accessories by Supplying Power Through 3.5mm Jack Powered Accessory/Headset Detection Bypass Switch to Power Accessories, Such as ANC Headsets Programmable Button Detection in Powered Accessory Mode
Powered Accessory/Headset Detection
Bypass Switch to Power Accessories, Such as ANC Headsets
Programmable Button Detection in Powered Accessory Mode
Empowers New Path in Data Communication to Accessories Power Line Communication by 3.5mm Jack Bidirectional Digital Data Communication in Power Mode Allow Emergence of New Accessory Types
Power Line Communication by 3.5mm Jack
Bidirectional Digital Data Communication in Power Mode
Allow Emergence of New Accessory Types
Provides Comfortable Sounds by Introducing Automatic Volume Adjustment Adaptive Volume Control Based on Precision Headset Impedance False Insertion Detection
Adaptive Volume Control Based on Precision Headset Impedance
False Insertion Detection
Saves Board Space with Small Form Factor 1.65mm x 2.05mm 4 x 5 Array 20-Bump 0.4mm Pitch WLP
1.65mm x 2.05mm 4 x 5 Array 20-Bump 0.4mm Pitch WLP

Specifications

VSUPPLY (V) 2.5 to 5.5
Low-Noise LDO Output (V) 5
MIC Switch Detection Ground
Control Inputs MIC Mode
Supply Current for MIC Detection (µA) 15600
Pop-Up Noise Elimination Plug-in and Plug-out
ESD Protection 15kV HBM on MIC and DETIN
Package/Pins WLP/20
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 0.9

Last 6 months Inventory & Pricing History

MAX20317EVKIT# Development Boards & Evaluation Kits by Analog Devices

EVAL BRD UNIVERSAL 3.5MM ACCESSORY MGMT

Development Boards, Evaluation Tools
> Special Application Development Kits
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Silicon Manufacturer Maxim Integrated Products
Silicon Core Number MAX20317
Kit Application Type Audio
Application Sub Type Universal 3.5mm Accessory Management
Kit Contents Eval Board MAX20317
Product Range -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

EVAL BRD, UNIVERSAL 3.5MM ACCESSORY MGMT | element14

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This part has not been flagged as RoHS Compliant.

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