AS3415 datasheet(48/102 Pages) AMSCO

Part #	AS3415

Description	Integrated Active Noise Cancelling Solution with Bypass Feature

PDF	102 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

Logo

48 / 102 page

AS3415/AS3435 – 48

ams Datasheet, Confidential: 2014-Jun-13 [v1-30]

De tail ed De sc rip t ion

LED Status Indication

AS3415 and AS3435 feature On-status information via the

current sink pin ILED with a maximum driving strength of

2.2mA. The current can be controlled in 3 steps and be switched

off by setting the PWM to 0%, 25%, 50% or 100% duty cycle of

a 50kHz signal. If LOW_BAT is active, ILED switches to blinking

at 1Hz, 50% duty cycle and 50% current setting. The LED can be

directly connected to the AS3415/35 without the need of a

current limiting resistor. The typical connection circuit is shown

in Figure 61.

Figure 61:

LED Status Indication Circuit

LED Status: The block diagram shows the connection of an LED which indicated the operation mode of the ANC

chipset.

Figure 62:

Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

IILED

ILED current sink current

100% duty cycle

2.2

AS3415 Datasheet(PDF) 48 Page - ams AG