CS5464-IS 查看數據表（PDF） - Cirrus Logic

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CS5464-IS

Three-channel, Single-phase Power/Energy IC

Cirrus Logic 

CS5464

6.2.10 Reactive Power (QTrig, Q2Trig) Registers

Address: 20 (QTrig), 21 (Q2Trig)

MSB

LSB

-(20) 2-1

2-2

2-3

2-4

2-5

2-6

2-7

..... 2-17 2-18 2-19 2-20 2-21 2-22 2-23

The Reactive Power (QTrig, Q2Trig) is calculated using trigonometric identities. (See Section 4.3 Power Mea-

surements on page 15). The value is represented in unsigned notation and in the range of 0 ≤ QTrig < 1.0

(0 ≤ Q2Trig < 1.0), with the binary point to the right of the MSB.

6.2.11 Temperature Gain (TGain) Register

Address: 2

MSB

LSB

26

25

24

23

22

21

20

2-1

..... 2-11 2-12 2-13 2-14 2-15 2-16 2-17

Default = 0x34E2E7 = 26.443169117

Temperature gain (TGain) is utilized to convert from one temperature scale to another. The Celsius scale (oC) is

the default. Values will be within in the range of 0 ≤ TGain < 128. The value is represented in unsigned notation,

with the binary point to the right of bit 7th MSB.

6.2.12 Temperature Offset (Toff) Register

Address: 3

MSB

LSB

-(20) 2-1

2-2

2-3

2-4

2-5

2-6

2-7

..... 2-17 2-18 2-19 2-20 2-21 2-22 2-23

Default = 0xF38701 = -0.0974425

Temperature offset (Toff) is used to remove the temperature channel’s offset at the zero-degree reading. Values

are represented in two's complement notation and in the range of -1.0 ≤ Toff < 1.0, with the binary point to the

right of the MSB.

DS682PP1

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