Ω, Quad SPDT Switches in UCSP/QFN _______________________" />
參數(shù)資料
型號: MAX4754ETE+T
廠商: Maxim Integrated Products
文件頁數(shù): 15/15頁
文件大小: 0K
描述: IC SWITCH QUAD SPDT 16TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
功能: 開關(guān)
電路: 4 x SPDT
導(dǎo)通狀態(tài)電阻: 850 毫歐
電壓電源: 單電源
電壓 - 電源,單路/雙路(±): 1.8 V ~ 5.5 V
電流 - 電源: 200nA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-WQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-TQFN-EP(4x4)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: MAX4754ETE+TDKR
MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A
0.5
Ω, Quad SPDT Switches in UCSP/QFN
_______________________________________________________________________________________
9
Detailed Description
The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A
low on-resistance analog switches operate from a single
+1.8V to +5.5V supply. The devices are fully specified
for nominal 3V applications.
The MAX4754/MAX4754A DPDT switch have two logic
control inputs with each input controlling two SPDT
switches. Each switch has a 0.5
Ω on-resistance in the
NO and NC terminals making it ideal for switching
audio signals.
The MAX4755 DPDT switch also has four 0.5
Ω SPDT
switches with the switch pairs 1 and 2 adding an 11.5
Ω
series resistor to the NC terminal. This feature allows
the user to drive an 8
Ω speaker as a 32Ω load, allowing
it to be used as an ear speaker. Two logic control
inputs are used to control the four switches.
The MAX4756/MAX4756A has four 0.5
Ω SPDT switches
controlled by one logic control input (INA) and EN input
to disable the switches.
Applications Information
Digital Control Inputs
The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A
logic inputs accept up to +5.5V regardless of the sup-
ply voltage. For example, with a +3.3V supply IN_ can
be driven low to GND and high to +5.5V, which allows
mixed logic levels in a system. Driving the control logic
inputs rail-to-rail also minimizes power consumption.
For a +3V supply voltage, the logic thresholds are 0.5V
(low) and 1.4V (high).
For the MAX4756/MAX4756A, drive EN low to enable the
COM_. When EN is high, COM _ is high impedance.
Analog Signal Levels
Analog signal inputs over the full voltage range (0V to
V+) are passed through the switch with minimal change
in on-resistance (see the Typical Operating Charac-
teristics). The switches are bidirectional so NO_, NC_,
and COM_ can be either inputs or outputs.
Power-Supply Bypassing
Power-supply bypassing improves noise margin and pre-
vents switching noise from propagating from the V+ sup-
ply to other components. A 0.1F capacitor connected
from V+ to GND is adequate for most applications.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, go to the Maxim
website at www.maxim-ic.com/ucsp for the Application
Note: UCSP—A Wafer-Level Chip-Scale Package.
MAX4754/
MAX4754A
INA
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
INB
COM3
COM4
COM1
COM2
HEADPHONE
(32
Ω)
INTERNAL
SPEAKER (8
Ω)
MAX4755
INA
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
INB
COM3
COM4
COM1
COM2
CAR-KIT SPEAKER (8
Ω)
EAR SPEAKER (32
Ω)
LOUD SPEAKER (8
Ω)
MAX4756/
MAX4756A
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
COM3
COM4
COM1
COM2
HEADPHONE
(32
Ω)
11
Ω
11
Ω
EN
INA
INTERNAL
SPEAKER (8
Ω)
Typical Operating Circuit
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