MAS6116 データシートの表示（PDF） - Micro Analog systems

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MAS6116

Stereo Digital Volume Control

Micro Analog systems 

DA6116.001

27 February, 2009

Data byte bits:

• All registers are set to their default values 00HEX except CR3 which is set to FFHEX during power-on reset.

• Default value for all bits is zero (00HEX).

TEST REGISTER CR5 DESCRIPTION

Note: Test register is intended for internal testing of the device only and not supposed to be used in

normal operation. It is strongly recommended not to change initial test register value from the default

(00HEX).

The XMUTE pin is in output mode when bit 1 in the test register CR5 is set. Bits 2, 3 and 4 select the internal

signal to be routed to the XMUTE pin in the test mode.

Condition

Data Byte bits

Function

76543210

XMUTE=in

00000000

Normal operation

Test, XMUTE=in

00000001

Force latch, note 2

Test, XMUTE=out 0 0 0 0 0 0 1 0

Left delay generator

Test, XMUTE=out 0 0 0 0 0 1 1 0

Left peak detector

Test, XMUTE=out 0 0 0 0 1 0 1 0

Left zero crossing

Test, XMUTE=out 0 0 0 0 1 1 1 0

Left gain set enable

Test, XMUTE=out 0 0 0 1 0 0 1 0

Right delay generator

Test, XMUTE=out 0 0 0 1 0 1 1 0

Right peak detector

Test, XMUTE=out 0 0 0 1 1 0 1 0

Right zero crossing

Test, XMUTE=out 0 0 0 1 1 1 1 0

Right gain set enable

Note 2. Forces the new gain value to be set without waiting for a zero crossing to occur in the input signal or the timeout delay to pass. When

force latch is used, both channels are latched with the same gain value.

POWER-ON RESET

MAS6116 has a Power-On Reset circuit (POR) that ensures that the circuit is set to a known state when power is

applied. The device can be activated as described in chapter Operating modes after the POR delay has passed.

In addition MAS6116 has a supply voltage monitoring circuit, that monitors the digital supply voltage (DVCC) level.

If the digital supply voltage drops below the specified level, the circuit is set to RESET state. The voltage

monitoring circuit is functional only when sufficient analog supply voltage (AVCC) is present.

Parameter

Symbol

Conditions

Min

Typ

Max Unit

POR delay

TPOR

From DVCC=5V to POR rising edge

450

µs

Monitored DVCC

level

Vmon

Measured from DGND

2.8

V

AVCC level to

VAVCC

Measured from AGND

2.5

V

enable DVCC

monitoring

8 (18)

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