December, 2013, REV1.1
BCT4699
0.5
Ω, 3.3V
Quad-SPDT Analog Switch
General Description
The BCT4699 is configured as a quad-SPDT
switch with two common control inputs. Each
digital input controls two pairs of SPDT switches.
The switches are fully bi-directional, allowing both
multiplexing and de-multiplexing operation.
Break-before-make operation is guaranteed.
The device operates from a +2.5V to +5.0V supply
C
C
and over the extended -40° to +85°
temperature range. It is offered in 16-pin 3mm x
3mm TQFN package.
Features
♦ Low 0.5Ω R
ON
（+2.7Vsupply）
♦ 0.05Ω On-Resistance Flatness
♦ Excellent 0.05Ω On-Resistance Matching
♦ Low 0.02% THD into 8Ω
♦ Low 0.015% THD into 32Ω
♦ Rail-to-Rail Signal Switching Range
♦ Fast Switching Speed：20nsTYP at 3.3V
♦ High Off Isolation: -66dB
♦ Crosstalk Rejection: -86dB
♦ -3dB bandwidth: 100MHz
♦ Audio Signal Routing
♦ Space-Saving, 3mm x 3mm TQFN Package
Applications
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3/MP4 Players
PCMCIA Cards
Modems
Hard Drives
Ordering Information
Ordering Code
Package
Description
Temp
Range
.–40°to
C
+85°
C
Top
Marking
XXXXX
BCT4699ETE
16PIN TQFN
Notes: XXX=INTERNAL CODE
XX=FOUNDRY NAME
Pin Configurations
Typical Application Circuit
www.broadchip.com
December, 2013, REV1.1
0.5Ω，3.3V Quad-SPDT Analog Switch
Absolute Maximum Ratings
V
CC
, INA，INB to GND............... ..................-0.3V to +6.0V
All Other Pins to GND (Note 1)...........-0.3V to (VCC + 0.3V)
Continuous Current (NO_, NC_, COM_)................ ±
400mA
Peak Current (NO_, NC_, COM_)
(pulsed at 1ms, 10% duty cycle)..............................±
500mA
Continuous Power Dissipation (TA = +70°
C)
C
C)
16-Pin TQFN ( 15.6mW/°above +70° ……….....1.25W
C
C
Operating Temperature Range ....................-40°to +85°
Storage Temperature Range......................-65°to +150°
C
C
C
Junction Temperature...............................................+150°
C
Lead Temperature (soldering, 10s)...........................+300°
Note 1: Signals on NO_, NC_, COM_
，
INA and INB exceeding VCC or GND are clamped by internal diodes. Limit
forward-diode current to maxium current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods
may affect device reliability.
Electrical Characteristics
(VCC = 2.7V to 4.2V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 3V, TA = +25° (Note 2)
C.
Parameter
POWER SUPPLY
Supply Voltage
Range
Supply Current
ANALOG SWITCH
Analog Signal
Range
On-Resistance
Symbol
Conditions
Min Typ Max
Units
V
CC
I
CC
V
CC= 3.6V, VIN
_ = 0 or V
CC
,
NO_ = NC_ = COM_ = floating
2.5
0.02
5.0
1
V
uA
NO_, NC_, COM_
R
ON
V
CC= 2.7V,
I
COM
_ = 100mA,
V
NO
_ or V
NC
_ = 0
to V
CC(3)
0
0.5
VCC
0.8
V
T
A
= +25°
C
T
A= T
MIN
to T
MAX
T
A
= +25°
C
T
A= T
MIN
to T
MAX
T
A
= +25°
C
T
A= T
MIN
to T
MAX
T
A
= +25°
C
T
A= T
MIN
to T
MAX
T
A
= +25°
C
T
A= T
MIN
to T
MAX
Ω
0.9
0.05
0.09
On-Resistance
Match
On-Resistance
Flatness
ΔR
ON
V
CC= 2.7V,
ICOM
_ = 100mA,
V
NO
_ or V
NC
_ =
1.5V
(3,4)
V
CC= 2.7V;
I
COM
_ = 100mA;
V
NO
_ or V
NC
_ =
0.6V, 1.2V, 1.8V
(5)
Ω
0.1
0.06
0.1
0.12
20
R
FLAT
Ω
NO_ or NC_ Off-
Leakage Current
V
CC= 3.3V;
V
COM
_ = 3V,
I
OFF
0.3V or floating;
V
NO
_ or V
NC
_ =
0.3V, 3V or
floating
nA
100
COM_ On-
Leakage Current
V
CC= 3.3V;
V
NO
_ or V
NC
_ =
I
ON
0.3V, 3V or
floating;
V
C OM
_ =
0.3V, 3V or
floating
20
nA
100
www.broadchip.com
December, 2013, REV1.1
0.5Ω, 3.3V Quad-SPDT Analog Switch
Electrical Characteristics (continued)
(V
CC
= 2.7V to 4.2V, T
A
= T
MIN
to T
BCT
, unless otherwise noted. Typical values are at V
CC
= 3V, T
A
= +25°
(2)
C.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
DYNAMIC CHARACTERISTICS
V
CC
= 2.7V,
V
NO
_orV
NC
_=1.5V,
R
L
= 50Ω,
C
L
= 35pF, Figure 1
V
CC
= 2.7V,
V
NO
_orV
NC
_=1.5V,
R
L
= 50Ω,
C
L
= 35pF, Figure 1
V
CC
= 2.7V,
V
NO
_or V
NC
_ =1.5V,
R
L
= 50Ω,
C
L
= 35pF,Figure2
(6)
T
A
= +25°
C
T
A
= T
MIN
to T
MAX
T
A
= +25°
C
T
A
= T
MIN
to T
MAX
T
A
= +25°
C
T
A
= T
MIN
to T
MAX
2
2
100
100
-66
pC
MHz
dB
15
ns
15
20
30
ns
50
40
ns
50
Turn-On Time
T
ON
Turn-Off Time
T
OFF
Break-Before-Make
Time
t
BBM
Charge Injection
On-Channel
Bandwidth -3dB
Off-Isolation
Q
BW
V
ISO
V
GEN
= 0V, R
GEN
= 0Ω, C
L
= 1nF,
Figure 3
R
L
= 50Ω, Figure 4
V
COM
_ = 1VRMS, R
L
= 50Ω,
f = 100kHz, C
L
= 5pF, Figure 4
(7)
V
COM
_ = 1VRMS, R
L
= 50Ω,
f = 100kHz, C
L
= 5pF, Figure 4
(8)
f = 20Hz to 20kHz; V
NC
_, V
NO
_,
V
COM
_ = 0.5VP-P; R
L
= 32Ω
f = 1MHz, V
NO
_ = V
NC
_ = V
COM
_ =
1.5V, Figure 5
f = 1MHz, V
NO
_ = V
NC
_ = V
COM
_ =
1.5V, Figure 5
V
AC
= 100mVP-P, V
COM
_ = 1.5V,
R
L
= 50Ω, f = 100kHz
1.4
Crosstalk
Total Harmonic
Distortion Plus Noise
NC_ or NO_
Off-Capacitance
COM_
On-Capacitance
Power-Supply
Rejection Ratio
DIGITAL INPUTS
Input-Logic High
Input-Logic Low
Input Leakage Current
V
CT
-86
dB
THD+N
C
NC
_(OFF),
C
NO
_(OFF)
C
COM
_(ON)
0.02
%
30
pF
100
pF
PSRR
-34
dB
V
IH
V
IL
I
IN
V
CC
=2.7V to 4.2V,
V
IN_
= 0 or V
CC
,
0.5
±
1
V
V
uA
Note 2: Devices are 100% tested at TA = +25° Limits across the full temperature range are guaranteed by design and
C.
correlation.
Note 3: R
ON
and RON matching specifications are guaranteed by design for BCT4699ETE only.
Note 4: ∆R
ON
= R
ON
(MAX) - R
ON
(MIN).
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured
over the specified analog signal ranges.
Note 6: Guaranteed by design, not production tested.
Note 7: Off-isolation = 20log10 [V
COM
_ / (V
NO
_ or V
NC
_)], V
COM
_ = output, V
NO
_ or V
NC
_ = input to off switch.
Note 8: Between any two switches.
www.broadchip.com
December, 2013, REV1.1
0.5 Ω, 3.3V Quad-SPDT Analog Switch
Timing Circuits/Timing Diagrams
Figure 1. Switching Time
Figure 2. Break-Before-Make Interval
Figure 3. Charge Injection
www.broadchip.com
December, 2013, REV1.1
0. 5 Ω, 3.3V Quad-SPDT Analog Switch
Timing Circuits/Timing Diagrams(continued)
Figure 4. On-Loss, Off-Isolation, and Crosstalk
Figure 5. Channel On-/Off-Capacitance
www.broadchip.com
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