CXA2108 View Datasheet(PDF) - Sony Semiconductor
Part Name
Description
Manufacturer
CXA2108 Datasheet PDF : 28 Pages
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CXA2108Q
Rext [kΩ] D9
D8 Io (FFh) [mA] Io (00h) [mA]
2.0
0
0
21.7
10.8
2.0
0
1
43.3
21.7
2.0
1
0
65.0 ∗1
32.5
2.0
1
1
86.7 ∗2
43.3
2.5
0
0
17.3
8.7
2.5
0
1
34.7
17.3
2.5
1
0
52.0
26.0
2.5
1
1
69.3 ∗1
34.7
3.0
0
0
14.4
7.2
3.0
0
1
28.9
14.4
3.0
1
0
43.3
21.7
3.0
1
1
57.8
28.9
3.5
0
0
12.4
6.2
3.5
0
1
24.8
12.4
3.5
1
0
37.1
18.6
3.5
1
1
49.5
24.8
4.0
0
0
10.8
5.4
4.0
0
1
21.7
10.8
4.0
1
0
32.5
16.3
4.0
1
1
43.3
21.7
∗1 Operation guaranteed current exceeded.
∗2 Absolute maximum rating exceeded.
Istb [mA]
27.3
48.3
69.2
90.2
22.4
39.2
55.9
72.7
19.1
33.1
47.1
61.1
16.8
28.8
40.8
52.8
15.1
25.6
36.0
46.5
Pstb [W]
0.136
0.241
0.346
0.451
0.112
0.196
0.280
0.364
0.096
0.166
0.235
0.305
0.084
0.144
0.204
0.264
0.075
0.128
0.180
0.233
Po (max) [W]
1.36
1.26
1.15
1.05
1.39
1.30
1.22
1.14
1.40
1.33
1.26
1.19
1.42
1.36
1.30
1.24
1.42
1.37
1.32
1.27
Table 2. Drive Current Setting and Power Consumption (when D0 to D7 = FFh)
Rext : External resistor that sets the DAC reference current (Iref)
D9, D8 : Data that sets the maximum drive current (Io (FFh))
Iref : DAC reference current
Iref [mA] = 1.3 [V]/Rext [kΩ]/24
Io (FFh) : Maximum drive current that can be set by D0 to D7
Io (FFh) [mA] = Iref × (2 × D9 + D8 + 1) × 800
Io (00h) : Minimum drive current that can be set by D0 to D7
Io (00h) [mA] = Io(FFh)/2
Istb : Standby current (Internal current consumption excluding the driver block)
Istb [mA] = 2.86 + 24 × Iref × (16/3 + 32.25 × (2 × D9 + D8 + 1))
Pstb : Standby power (Internal power consumption excluding the driver block, Vcc = 5 V)
Pstb [W] = 5 [V] × Istb [mA]/1000
Po (max) : Maximum power that can be consumed by the driver block
Po (max) [W] = 1.5 [W] – Pstb [W]
Note) Istb, Pstb and Po (max) are the values when D0 to D7 = 11111111 (FFh).
In addition, these values assume the case where all channels are set to the same drive current.
–8–
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