NT7502 데이터 시트보기 (PDF) - Novatek Microelectronics
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NT7502 Datasheet PDF : 54 Pages
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NT7502
VREG is the IC internal fixed voltage supply, and its voltage at Ta = 25℃ is as shown in Table 10.
Table. 10
Equipment Type
Internal power Supply
Internal power Supply
External input
TMPS
0
1
*
VRS
1
1
0
Thermal Gradient
-0.05
-0.2
-
Units
%/℃
%/℃
-
VREG
2.1
2.1
VEXT
α is set to 1 level of 64 possible levels by the electronic volume function depending on the data set in the 6-bit electronic volume
register. Table 10 shows the value for α depending on the electronic volume register settings. Ra/Rb is the V0 voltage regulator
internal resistor ratio, and can be set to 8 different levels through the V0 voltage regulator internal resistor ratio set command.
The (1+Rb/Ra) ratio assumes the values shown in Table11 depending on the 3-bit data settings in the V0 voltage regulator
internal resistor ratio register.
Table. 11
D5 D4 D3 D2 D1 D0
α
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
2
:
:
:
1
0
0
0
0
0 32 (default)
:
:
:
1
1
1
1
1
0
62
1
1
1
1
1
1
63
V0
Minimum
:
:
:
:
:
:
Maximum
V0 voltage regulator internal resistance ratio register value and (1+ Rb/Ra) ratio (Reference value)
Table. 12
Register
D2
D1
D0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Equipment Type by Thermal Gradient [Units:%/ ℃]
1. -0.05
2. -0.2
3. VREG External Input
3.0
3.0
1.5
3.5
3.5
2.0
4.0
4.0
2.5
4.5
4.5
3.0
5.0
5.0
3.5
5.5
5.5
4.0
6.0
6.0
4.5
6.4
6.4
5.0
19
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