TDA8944AJ 查看數據表（PDF） - NXP Semiconductors.
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TDA8944AJ Datasheet PDF : 20 Pages
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Philips Semiconductors
TDA8944AJ
2 x 7 W BTL audio amplifier with DC gain control
11. Static characteristics
Table 7: Static characteristics
VCC = 12 V; Tamb = 25 °C; RL = 8 Ω; VMODE = 0 V; Vi = 0 V; measured in test circuit Figure 15; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC
Iq
Istb
VO
∆VOUT[3]
supply voltage
quiescent supply current
standby supply current
DC output voltage
differential output voltage
offset
operating
RL = ∞
VMODE = VCC
4.5
12
[1] -
40
-
-
[2] -
6
-
-
18
V
50
mA
10
µA
-
V
170
mV
VMODE
IMODE
mode selection input voltage operating mode
mute mode
standby mode
mode selection input current 0 < VMODE < VCC
0
-
3.5
-
VCC − 0.5 -
-
-
1.0
V
VCC − 1.5 V
VCC
V
20
µA
VGC
gain control voltage (pin GC) pin GC not connected
-
2.75
-
V
IGC
current into pin GC
VGC = 0 V
-
600
-
µA
[1] With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the differential
output voltage offset (∆VOUT) divided by the load resistance (RL).
[2] The DC output voltage with respect to ground is approximately 0.5VCC.
[3] ∆VOUT = VOUT+ − VOUT− .
handbook,5h0alfpage
Iq
(mA)
40
30
20
10
0
0
4
MGW590
8
12
16
20
VCC (V)
Fig 4. Quiescent current as function of supply
voltage.
handbook,5h0alfpage
Iq
(mA)
40
MGW591
30
20
10
0
0
4
8
12
16
20
VMODE (V)
VCC = 12 V
Fig 5. Quiescent current as function of mode voltage.
9397 750 09433
Product data
Rev. 01 — 01 March 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
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