CC1020-RTR1 datasheet(79/95 Pages) TI1

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CC1020

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SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015

Table 5-54. TEST4 Register (24h, for Test Only)(1)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

TEST4[7]

CHP_DISABLE

Disable normal charge pump operation

TEST4[6]

CHP_TEST_UP

Force charge pump to output “up” current

TEST4[5]

CHP_TEST_DN

Force charge pump to output “down” current

TEST4[4:3]

TM_IQ[1:0]

—

Value of differential I and Q outputs from mixer when TM_ENABLE=1

0: I output negative, Q output negative

1: I output negative, Q output positive

2: I output positive, Q output negative

3: I output positive, Q output positive

TEST4[2]

TM_ENABLE

Enable DC control of mixer output (for testing)

TEST4[1]

TF_ENABLE

Connect analog test module to filter inputs

TEST4[0]

TA_ENABLE

Connect analog test module to ADC inputs

(1)

If TF_ENABLE=1 or TA_ENABLE=1 in TEST4 register, then INTERFACE[3:0] controls analog test module: INTERFACE[3] = TEST_PD,

INTERFACE[2:0] = TEST_MODE[2:0]. Otherwise, TEST_PD=1 and TEST_MODE[2]=1.

Table 5-55. TEST5 Register (25h, for Test Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

TEST5[7]

F_COMP_ENABLE

Enable frequency comparator output F_COMP from phase detector

TEST5[6]

SET_DITHER_CLOCK

Enable dithering of delta-sigma clock

TEST5[5]

ADC_TEST_OUT

Outputs ADC samples on LOCK and DIO, while ADC_CLK is output

on DCLK

TEST5[4]

CHOP_DISABLE

Disable chopping in ADC integrators

TEST5[3]

SHAPING_DISABLE

Disable ADC feedback mismatch shaping

TEST5[2]

VCM_ROT_DISABLE

Disable rotation for VCM mismatch shaping

TEST5[1:0]

ADC_ROTATE[1:0]

—

Control ADC input rotation

0: Rotate in 00 01 10 11 sequence

1: Rotate in 00 10 11 01 sequence

2: Always use 00 position

3: Rotate in 00 10 00 10 sequence

Table 5-56. TEST6 Register (26h, for Test Only)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

TEST6[7:4]

—

Reserved, write 0

TEST6[3]

VGA_OVERRIDE

—

Override VGA settings

TEST6[2]

AC1O

—

Override value to first AC coupler in VGA

0: Approx. 0 dB gain

1: Approx. –12 dB gain

TEST6[1:0]

AC2O[1:0]

—

Override value to second AC coupler in VGA

0: Approx. 0 dB gain

1: Approx. –3 dB gain

2: Approx. –12 dB gain

3: Approx. –15 dB gain

Detailed Description

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