TS4601B

Application information

19/28

Figure 51.

I²C read operations

4.2.2

Control registers

The TS4601B can be set to standby in two different ways:

●

A master standby from an MCU using SDZ input, can set the TS4601B in master

600 k

Ω +/-20% pull-down resistor. If VSDZ > 0 V, an additional current consumption

has to be taken into consideration and provided by the MCU IO. This additional current

●

and SCL inputs).

When the TS4601B is in Master standby or I²C standby mode (on one or both channels), the

corresponding amplifier output is forced to ground through a 16

Ω resistor. In mode 5, in

which amplifiers are inactive but the power management part is active, the amplifier outputs

are in high impedance state to allow line in function.

SDA

S

11

0

0

0

1

A

0

0

D7

D0

D7

D0

D7

A

P

Start condition

SLAVE ADDRESS

CONTROL REGISTERS

R/W

Acknowledge

from Slave

Acknowledge

Stop

condition

D0

D7

D0

D7

D0

CR0

CR1

CR2

CR3

CR4

A

A

A

A

SDA

S

11

0

0

0

1

A

A

0

0

D7

D0

D7

D0

D7

A

P

Start condition

SLAVE ADDRESS

CONTROL REGISTERS

R/W

R/W

Acknowledge

from Slave

Acknowledge

Stop

condition

D0

D7

D0

D7

D0

CR0

CR1

CR2

CR3

CR4

A

A

A

A

A

A

A

A

Table 10.

Output mode configuration - CR1

Modes register

Headphone output

Left

Headphone output

Right

Negative supply

and regulators

0

0

0

Mode 1: standby

SD

SD

0

0

1

Mode 2: channel R

SD

GxINR

ON

0

1

0

Mode 3: channel L

GxINL

SD

ON

0

1

1

Mode 4: on

GxINL

GxINR

ON

1

0

0

Mode 5: Line-in mode

SD

SD

ON

1

0

1

Mode 6: standby

SD

SD

SD

1

1

0

Mode 7: standby

SD

SD

SD

1

1

1

Mode 8: standby

SD

SD

SD

1.

SD: shutdown,I NR: audio input right, INL: audio input left, G: gain for channel R and channel L, ON: when a function is

active.