參數(shù)資料
型號： DS4420N+T&R
廠商： Maxim Integrated Products
文件頁數(shù)： 2/10頁
文件大?。?/td> 0K
描述： IC AMP AUDIO MONO AB DIFF 14TDFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 音頻
電路數(shù)： 1
輸出類型： 差分
電流 - 電源： 1.7mA
電流 - 輸出 / 通道： 95mA
電壓 - 電源，單路/雙路(±)： 4.5 V ~ 5.5 V
工作溫度： -20°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 14-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 14-TDFN-EP（3x3）
包裝： 帶卷 (TR)
Exposed Paddle
The DS4420 exposed paddle is not electrically isolated.
It must be soldered to ground for proper operation.
Input-Coupling Capacitors
The DS4420 is designed to be operated with an AC-
coupled input signal. The input resistance, RIN, is suffi-
ciently large to allow the use of small and inexpensive
external capacitors. The input resistance combined
with the AC-coupling capacitor will create a highpass
filter. The -3dB cutoff frequency of the highpass, fC, is
given by:
where CIN is the external coupling capacitor and RIN is
the internal input resistance.
At the cutoff frequency, the input signal will be attenuat-
ed 3dB, with less attenuation as the signal’s frequency
increases beyond the cutoff frequency. To guarantee
passband flatness, the cutoff frequency of the filter
should be designed using the specified minimum input
resistance, and placed well below the desired flat band
of the circuit. The typical input resistance should only
be used to estimate typical performance.
Internal Ground Connections
The DS4420’s ground pins, GND and AGND, must be
connected together externally. Internally, they are con-
nected as shown in Figure 5.
Chip Topology
TRANSISTOR COUNT: 5347
SUBSTRATE CONNECTED TO: Ground
Package Information
For the latest package outline information, go to www.maxim-
ic.com/DallasPackInfo.
f
CR
C
IN
1
2
=
××
π
GND
AGND
13Ω