TVP7002IPZP datasheet(44/58 Pages) TI1

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TVP7002

SLES206C – MAY 2007 – REVISED APRIL 2013

www.ti.com

ADC Setup

Subaddress

2Ch

(Default 50h)

ADC bias control [3:0]

Trim clamp [3:0]

ADC bias control [3:0]: Allows adjusting the internal ADC bias current for optimum performance.

0h = Minimum setting

5h = Recommended setting for sample rates

≤ 110 MSPS (default)

8h = Recommended setting for sample rates > 110 MSPS

Fh = Maximum setting

Trim clamp [3:0]: SOG coarse clamp bias current control.

0h = 2

μA (default)

3h = 8

μA

Fh = 32

μA

IBIAS = 2 + 2 × NBIAS, where 0

≤ NBIAS ≤ 15

The SOG coarse clamp leakage current (subaddress 30h) is derived from the SOG coarse clamp bias current.

Coarse Clamp Control

Subaddress

2Dh

Default (00h)

CCCLP_cur_CH1 [1:0]

Reserved [5:3]

Coarse B

Coarse G

Coarse R

CCCLP_cur_CH1 [1:0]: Coarse clamp charge current switch selection.

00 = Highest charge current setting (default)

11 = Lowest charge current setting

Reserved [5:3]:

000 = Normal operation (default)

Coarse B: Active-high coarse clamp enable for Blue channel

0 = Blue channel coarse clamp disabled (default)

1 = Blue channel coarse clamp enabled

Coarse G: Active-high coarse clamp enable for Green channel

0 = Green channel coarse clamp disabled (default)

1 = Green channel coarse clamp enabled

Coarse R: Active-high coarse clamp enable for Red channel

0 = Red channel coarse clamp disabled (default)

1 = Red channel coarse clamp enabled

NOTE: Enabling Coarse clamps will disable Fine clamps and override Fine clamp enable settings in subaddress 2Ah.

SOG Clamp

Subaddress

2Eh

(Default 80h)

SOG_CE

CCCLP_cur_SOG [1:0]

upi_sog

dwni_sog

upi_ch123 [2:0]

SOG_CE: Active-high SOG clamp enable.

0 = SOG clamp disabled

1 = SOG clamp enabled (default)

CCCLP_cur_SOG [1:0]: SOG coarse clamp charge current switch selection.

00 = Lowest charge current setting (default)

11 = Highest charge current setting

Reserved [4:0]:

0 = Normal operation (default)

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