LM49151TLSLASHNOPB datasheet(21/34 Pages) TI2

21 / 34 page

TI Confidential - NDA Restrictions

LM49151

www.ti.com

SNAS482F – MARCH 2009 – REVISED MARCH 2013

Table 3. Shutdown Control (continued)

Bit

Name

Value

Description

This disables the gain amplifiers that are not in use to minimize IDD. This setting is recommended

for output modes 1, 2, 4, 5, 8, 10.

GAMP_SD

Status

GAMP_SD

Normal operation

Disable the unused gain amplifiers

MODE CONTROL REGISTER

This register is used to control shutdown operation of the device.

Table 4. Output Mode Selection (see legend below(1))

Bits

Field

Description

B3:B0

MODE

This set the different mixers output modes.

_CONTROL

Mode_

Mode

Loudspeaker

Headphone Right

Headphone Left

Control

0000

0001

GM x M

0010

2 x (GL x L + GR x R)

0011

+ GM x M

0100

GM x M/2

0101

GM x M

GM x M/2

0110

2 x (GL x L + GR x R)

GM x M/2

2 x (GL x L + GR x R) +

0111

GM x M/2

GM x M

1000

GR x R

GL x L

1001

GM x M

GR x R

GL x L

1010

2 x (GL x L + GR x R)

GR x R

GL x L

2 x (GL x L + GR x R)

1011

GR x R

GL x L

+ GM x M

1100

GR x R + GM x M/2

GL x L + GM x M/2

1101

GM x M

GR x R + GM x M/2

GL x L + GM x M/2

1110

2 x (GL x L + GR x R)

GR x R + GM x M/2

GL x L + GM x M/2

2 x (GL x L + GR x R)

1111

GR x R + GM x M/2

GL x L + GM x M/2

+ GM x M

EP_BYPASS

This makes the loudspeaker and headphone amplifiers into shutdown mode and enables receiver bypass

path.

Normal output mode operation

Enable the receiver bypass path

(1)

M: Mono differential input

R: Right channel stereo input

L: Left channel stereo input

SD: Shutdown

GM : Differential input gain path

GR: Right channel input gain path

GL: Left channel input gain path

Submit Documentation Feedback

Product Folder Links: LM49151

LM49151TL/NOPB Datasheet(PDF) 21 Page - Texas Instruments

LM49151TL/NOPB Datasheet(HTML) 21 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Datasheet Download

Link URL