|
|
PDF SA58670 Data sheet ( Hoja de datos )
| Número de pieza | SA58670 | |
| Descripción | 2.1 W/channel stereo class-D audio amplifier | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SA58670 (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
|
No Preview Available !
SA58670
2.1 W/channel stereo class-D audio amplifier
Rev. 01 — 4 January 2008
Product data sheet
1. General description
www.DataSheet4U.com
The SA58670 is a stereo, filter-free class-D audio amplifier which is available in an
HVQFN20 package with the exposed Die Attach Paddle (DAP).
The SA58670 features independent shutdown controls for each channel. The gain may be
set at 6 dB, 12 dB, 18 dB or 24 dB with gain select pins G0 and G1. Improved immunity to
noise and RF rectification is increased by high PSRR and differential circuit topology. Fast
start-up time and small package makes it an ideal choice for both cellular handsets and
PDAs.
The SA58670 delivers 1.4 W/channel at 5.0 V and 720 mW/channel at 3.6 V into 8 Ω. It
delivers 2.1 W/channel at 5.0 V into 4 Ω. The maximum power efficiency is excellent at
70 % to 74 % into 4 Ω and 84 % to 88 % into 8 Ω. The SA58670 provides thermal and
short-circuit shutdown protection.
2. Features
I Output power:
N 2.1 W/channel into 4 Ω at 5.0 V
N 1.4 W/channel into 8 Ω at 5.0 V
N 720 mW/channel into 8 Ω at 3.6 V
I Supply voltage: 2.5 V to 5.5 V
I Independent shutdown control for each channel
I Selectable gain: 6 dB, 12 dB, 18 dB and 24 dB
I High SVRR: −77 dB at 217 Hz
I Fast start-up time: 3.5 ms
I Low supply current
I Low shutdown current
I Short-circuit and thermal protection
I Space savings with 4 mm × 4 mm HVQFN20 package
I Low junction to ambient thermal resistance of 24 K/W with exposed DAP
3. Applications
I Wireless and cellular handset and PDA
I Portable DVD player
I USB speaker
I Notebook PC
I Portable radio and gaming
1 page  
NXP Semiconductors
SA58670
2.1 W/channel stereo class-D audio amplifier
8. Static characteristics
Table 4. Static characteristics
Tamb = 25 °C; unless otherwise specified[1].
Symbol Parameter
Conditions
VDD supply voltage
IDD supply current
www.DataSheet4U.com
PSRR
Vi(cm)
CMRR
power supply rejection ratio
common-mode input voltage
common mode rejection ratio
IIH
IIL
fsw
Gv(cl)
HIGH-level input current
LOW-level input current
switching frequency
closed-loop voltage gain
Pins OUTLP, OUTLN, OUTRP and OUTRN
operating
VDD = 2.5 V; no load
VDD = 3.6 V; no load
VDD = 5.5 V; no load
VDD = 2.5 V to 5.5 V
inputs are shorted together;
VDD = 2.5 V to 5.5 V
VDD = 5.5 V; VI = VDD
VDD = 5.5 V; VI = 0 V
VDD = 2.5 V to 5.5 V
VG0 = VG1 = 0.35 V
VG0 = VDD; VG1 = 0.35 V
VG0 = 0.35 V; VG1 = VDD
VG0 = VG1 = VDD
RDSon drain-source on-state resistance VDD = 2.5 V
VDD = 3.6 V
VDD = 5.5 V
|VO(offset)| output offset voltage
measured differentially; inputs
AC grounded; Gv(cl) = 6 dB;
VDD = 2.5 V to 5.5 V
Zo(sd)
shutdown mode output impedance VSDR = VSDL = 0.35 V
Pins SDL and SDR
VI input voltage
channel on
channel off
II input current
no input signal; channel off
[1] VDD is the supply voltage on pins PVDD and pin AVDD.
GND is the ground supply voltage on pins PGND and pin AGND.
Min Typ
2.5 -
-4
-5
-6
- −75
0.5 -
- −69
--
--
250 300
5.5 6
11.5 12
17.5 18
23.5 24
- 700
- 570
- 500
-5
Max
5.5
6
7.5
9
−55
VDD − 0.8
−50
Unit
V
mA
mA
mA
dB
V
dB
50 µA
5 µA
350 kHz
6.5 dB
12.5 dB
18.5 dB
24.5 dB
- mΩ
- mΩ
- mΩ
10 mV
- 2-
-
GND
-
0.5VDD
-
10
-
0.4
1000
kΩ
V
V
nA
SA58670_1
Product data sheet
Rev. 01 — 4 January 2008
© NXP B.V. 2008. All rights reserved.
5 of 25
5 Page 
NXP Semiconductors
SA58670
2.1 W/channel stereo class-D audio amplifier
www.DataSheet4U.com
1
THD+N
(%)
10−1
10−2
(1)
(2)
(3)
10−3
10
102
(1) Po = 1.65 W; Vi = 1.285 V (RMS).
(2) Po = 1.1 W; Vi = 1.05 V (RMS).
(3) Po = 550 mW; Vi = 741.6 mV (RMS).
a. RL = 4 Ω
10
THD+N
(%)
1
(1)
103
001aah492
104 105
f (Hz)
001aah493
10−1
10−2
(2)
(3)
10−3
10
102 103 104 105
f (Hz)
(1) Po = 1.16 W; Vi = 1.523 V (RMS).
(2) Po = 775 mW; Vi = 1.245 V (RMS).
(3) Po = 380 mW; Vi = 871.8 mV (RMS).
b. RL = 8 Ω
Gv(cl) = 6 dB.
Fig 7. Total harmonic distortion-plus-noise as a function of frequency; VDD = 5.0 V
SA58670_1
Product data sheet
Rev. 01 — 4 January 2008
© NXP B.V. 2008. All rights reserved.
11 of 25
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet SA58670.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SA58670 | 2.1 W/channel stereo class-D audio amplifier | NXP Semiconductors |
| SA58670A | 2.1 W/channel stereo class-D audio amplifier | NXP Semiconductors |
| SA58670ABS | 2.1 W/channel stereo class-D audio amplifier | NXP Semiconductors |
| SA58671 | 1.2 W/channel Stereo Class-D Audio Amplifier | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |