13892 datasheet(56/75 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

13892

FUNCTIONAL DEVICE OPERATION

Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not

available from Freescale for import or sale in the United States prior to September 2010: MC13892VK and MC13892VL in 139, 186 MAPBGA packages.

Figure 10. Transient Response Waveforms

VAUDIO AND VVIDEO SUPPLIES

The primary applications of these power supplies are for

audio, and TV-DAC. These supplies could also be used for

other peripherals if one of these functions is not required. Low

Power modes and programmable Standby options can be

used to optimize power efficiency during deep sleep modes.

VAUDIO is implemented with an integrated PMOS pass

FET and has a dedicated input supply pin VINAUDIO.

The nominal output voltage (VNOM as referred in Table

Table 4) of VVIDEO can go from 2.5 to 2.7 V on 0.1 V steps,

it also can be programmed to be 2.775 V. Its output current

depends on the external pass device.

The nominal output voltage (VNOM as referred in Table

Table 4) of VAUDIO can be programmed to be 2.3, 2.5, 2.775

or 3.0 V.

LOW VOLTAGE SUPPLIES

VDIG and VPLL are provided for isolated biasing of the

Baseband system PLLs for clock generation in support of

protocol and peripheral needs. Depending on the lineup and

power requirements, these supplies may be considered for

sharing with other loads, but noise injection must be avoided

and filtering added if necessary, to ensure suitable PLL

performance. The VDIG and VPLL regulators have a

dedicated input supply pin: VINDIG for the VDIG regulator

and VINPLL for the VPLL regulator. VINDIG and VINPLL can

be connected to either BP or a 1.8 V switched mode power

supply rail such as from SW4 for the two lower set points of

each regulator (1.2 V and 1.25 V output for VPLL and 1.05

and 1.25 V output for VDIG). In addition, when the two upper

set points are used (1.50 V and 1.8 V output for VPLL and

1.65 V and 1.8 V for VDIG) can be connected to either BP or

a 2.2 V nominal external switched mode power supply rail to

improve power dissipation.

The nominal programmable output voltage of VPLL (VNOM

as referred in Table 4) could be 1.2, 1.25, 1.50 or 1.8 V, while

VDIG can be configured to 1.05, 1.25, 1.65 and 1.8 V.

13892 Datasheet(PDF) 56 Page - Freescale Semiconductor, Inc

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