參數(shù)資料
型號: MAX9773EBP+TG45
廠商: Maxim Integrated Products
文件頁數(shù): 3/21頁
文件大小: 0K
描述: IC AMP AUDIO PWR 1.8W D 20UCSP
標準包裝: 2,500
類型: D 類
輸出類型: 2 通道(立體聲)
在某負載時最大輸出功率 x 通道數(shù)量: 1.8W x 2 @ 4 歐姆
電源電壓: 2.6 V ~ 5.5 V
特點: 消除爆音,差分輸入,短路和熱保護,關(guān)閉
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 20-UCSP(5x4)
封裝/外殼: 20-WFBGA,CSPBGA
包裝: 帶卷 (TR)
Operating Modes
Fixed-Frequency (FFM) Mode
The MAX9773 features two fixed-frequency modes.
Connect SYNC to GND to select a 1.1MHz switching fre-
quency. Leave SYNC unconnected to select a 1.4MHz
switching frequency. The frequency spectrum of the
MAX9773 consists of the fundamental switching frequen-
cy and its associated harmonics (see the Wideband FFT
graph in the Typical Operating Characteristics). Program
the switching frequency so the harmonics do not fall
within a sensitive frequency band (Table 1). Audio repro-
duction is not affected by changing the switching fre-
quency.
MAX9773
1.8W, Filterless, Ultra-Low EMI,
Stereo Class D Audio Power Amplifier
______________________________________________________________________________________
11
VOUT_+ - VOUT_-
tSW
VIN_-
VIN_+
OUT_+
OUT_-
tON(MIN)
Figure 2. MAX9773 Outputs with an Input Signal Applied (SSM Mode)
Table 1. Operating Modes
SYNC
MODE
GND
FFM with fOSC = 1100kHz
Unconnected
FFM with fOSC = 1400kHz
VDD
SSM with fOSC = 1200kHz
±60kHz
Clocked
FFM with fOSC = external clock frequency
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