SA58637_15 Datasheet, PDF (9/22 Pages) NXP Semiconductors – 2 x 2.2 W BTL audio amplifier

NXP Semiconductors
SA58637
2 × 2.2 W BTL audio amplifier
14. Test information
14.1 Static characterization
The quiescent current has been measured without any load impedance (Figure 4).
Figure 6 shows three areas: operating, mute and standby. It shows that the DC switching
levels of the mute and standby respectively depends on the supply voltage level.
30
I_q
(mA)
20
002aac081
10
0
0
4
R_L = ∞ Ω
8
12
16
20
V_CC (V)
Fig 4. Quiescent current as a function of supply
voltage
10
V_O (V)
1
10^−1
10^−2
10^−3
10^−4
10^−5
10^−6
10^−1
002aac089
(1) (2) (3)
1
10
10²
V_MODE (V)
Band-pass = 22 Hz to 22 kHz.
(1) V_CC = 3 V.
(2) V_CC = 5 V.
(3) V_CC = 12 V.
Fig 5. Output voltage as a function of voltage on pin
MODE
16
V_MODE
(V)
12
002aac090
standby
8
mute
4
0
0
4
8
Fig 6. Voltage on pin MODE as a function of supply voltage
operating
12
16
V_CC (V)
SA58637_1
Product data sheet
Rev. 01 — 25 February 2008
© NXP B.V. 2008. All rights reserved.
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