CC1020-RTR1 datasheet(72/95 Pages) TI1

72 / 95 page

CC1020

SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015

www.ti.com

Table 5-37. VGA3 Register (13h)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

VGA3[7:5]

VGA_DOWN[2:0]

—

Decides how much the signal strength must be above

CS_LEVEL+VGA_UP before VGA gain is decreased. Based on the

calculated internal strength level, which has an LSB resolution of 1.5

dB.

0: Gain is decreased when level is above CS_LEVEL+ 8 +

VGA_UP + 3

1: Gain is decreased when level is above CS_LEVEL+ 8 +

VGA_UP + 4

…

6: Gain is decreased when level is above CS_LEVEL+ 8 +

VGA_UP + 9

7: Gain is decreased when level is above CS_LEVEL+ 8 +

VGA_UP + 10

See Figure 5-15 for an explanation of the relationship between RSSI,

AGC and carrier sense settings.

VGA3[4:0]

VGA_SETTING[4:0]

VGA setting to be used when receive chain is turned on

This is also the maximum gain that the AGC is allowed to use.

See Figure 5-15 for an explanation of the relationship between RSSI,

AGC and carrier sense settings.

Table 5-38. VGA4 Register (14h)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

VGA4[7:5]

VGA_UP[2:0]

—

Decides the level where VGA gain is increased if it is not already at

the maximum set by VGA_SETTING. Based on the calculated internal

strength level, which has an LSB resolution of 1.5 dB.

0: Gain is increased when signal is below CS_LEVEL + 8

1: Gain is increased when signal is below CS_LEVEL+ 8 + 1

…

6: Gain is increased when signal is below CS_LEVEL+ 8 + 6

7: Gain is increased when signal below CS_LEVEL+ 8 + 7

See Figure 5-15 for an explanation of the relationship between RSSI,

AGC and carrier sense settings.

VGA4[4:0]

CS_LEVEL[4:0]

Reference level for Received Signal Strength Indication (carrier sense

level) and AGC.

See Figure 5-15 for an explanation of the relationship between RSSI,

AGC and carrier sense settings.

Detailed Description

Submit Documentation Feedback

Product Folder Links: CC1020

CC1020-RTR1 Datenblatt(PDF) 72 Page - Texas Instruments

CC1020-RTR1 Datenblatt(HTML) 72 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 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95

Datenblatt Download

Link URL