MAX5440(2006) Просмотр технического описания (PDF) - Maxim Integrated
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MAX5440 Datasheet PDF : 16 Pages
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Stereo Volume Control
with Rotary Encoder Interface
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +5.5V, VSS = GND = 0, 2.7V ≤ (VDD - VSS) ≤ 5.5V, VLOGIC = +2.7V to VDD, VH_ = VDD, VL_ = VDD / 2, TA = TMIN to
TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX UNITS
Power-Supply Rejection Ratio
PSRRBR 1kHz, 100mV on VDD, 1µF on BIAS
60
dB
Maximum Load
To VDD or GND
3
kΩ
Output Resistance
ROBR
CONTACT INPUTS (MUTE, MODE, RENCODEA, RENCODEB)
6
Ω
Internal Pullup Resistor
RPULLUP
Single Pulse Input Low Time
tCPW
Repetitive Input Pulse Separation
tIPWS
Timeout Period
tWS
Click/pop suppression inactive
DIGITAL INPUTS (MUTE, MODE, RENCODEA, RENCODEB, SHDN)
45
kΩ
22
ms
50
ms
32
ms
Input High Voltage (Note 2)
Input Low Voltage (Note 2)
Input Leakage Current
VIH
3.6V < VLOGIC ≤ 5.5V
2.7V ≤ VLOGIC ≤ 3.6V
VIL
3.6V < VLOGIC ≤ 5.5V
2.7V ≤ VLOGIC ≤ 3.6V
Inputs unconnected
2.4
V
2.0
0.8
V
0.6
-1
+1
µA
Input Capacitance
5
pF
POWER SUPPLIES
Supply Voltage
VDD
VSS = 0
Negative Power Supply
VSS
VDD = +2.7V
Supply Voltage Difference
VDD - VSS
Active Supply Current
IDD
Standby Supply Current (Notes 3, 4)
ISTBY
VDD = +5V, VSS = 0
VDD = +2.7V, VSS = -2.7V
Shutdown Supply Current
ISHDN (Note 3)
Power-Up Time
tPU
Click/pop suppression inactive
Logic Supply Voltage
VLOGIC VSS = 0
Logic Active Supply Current
IL
VRENCODEA = VRENCODEB = 0V
Logic Standby Supply Current
ILSTBY (Note 4)
Logic Shutdown Current
ILSHDN
LED INDICATORS (LEDIND0–LEDIND4, MODEIND)
2.7
5.5
V
-2.7
0
V
5.5
V
1.4
mA
1.3
mA
1.3
1
µA
50
ms
2.7
VDD
V
320
µA
1
µA
1
µA
Output Low Voltage
Output Leakage Current
VOL
VLOGIC = 2.7V, ISINK = 10mA
VLOGIC = 5.5V, ISINK = 10mA
0.4
V
0.2
0.1
10
µA
Output Capacitance
3
pF
Maximum Sink Current
150
mA
Note 1: Parameters are 100% production tested at +85°C and limits through temperature are guaranteed by design.
Note 2: The device draws current in excess of the specified supply current when the digital inputs are driven with voltages between
(VDD - 0.5V) and (GND + 0.5V). See Digital Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.
Note 3: Shutdown refers to the SHDN input being asserted low. Standby refers to SHDN not being asserted and all I/O inactive.
Note 4: Supply current measured with the wiper position fixed.
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