FSA4476UCX [ONSEMI]
带保护功能的模拟音频开关，USB Type-C;
| 型号： | FSA4476UCX |
| 厂家： | 
ONSEMI |
| 描述： | 带保护功能的模拟音频开关，USB Type-C 开关 |
| 文件： | 总14页 (文件大小：271K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA SHEET
www.onsemi.com
USB Type-C Analog Audio
Switch with Protection
Function
WLCSP25, 2.03x2.03x0.586
CASE 567UP
FSA4476
MARKING DIAGRAM
Description
FSA4476 is a high performance USB Type−C port multimedia
switch which supports analog audio headsets. FSA4476 allows the
sharing of a common USB Type−C port to pass USB2.0 signal, analog
audio, sideband use wires and analog microphone signal. FSA4476
also supports high voltage on CC port, SBU port and USB port on
USB Type−C receptacle side. In addition, FSA4476 supports USB
Type−C dead battery application and dual power supply with VBAT
rail and VBUS rail.
GR&K
&2&Z
GR = Device Code
&K = 2−Digits Lo Run Traceability Code
&2 = 2−Digit Date Code
&Z = Assembly Plant Code
Features
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
• Power Management
♦ Primary Power Supply: VBAT, 2.7 V to 5.5 V
♦ Second Power Supply VBUS, 4.0 V to 20 V
• USB High Speed (480 Mbps) Switch:
♦ −3 dB Bandwidth: 1 GHz
♦ 3 ꢀ R Typical
ON
• Audio Switch
♦ Negative Rail Capability: −3 V to +3 V
♦ THD+N = −110 dB; 1 V , f = 20 Hz~20 kHz, 32 ꢀ Load
RMS
♦ 0.6 ꢀ R Typical
ON
• High Voltage Protection
♦ 20 V DC Protection on CC Port and SBU Port
♦ 16 V DC Protection on DP/R and DN/L Port
• Over Voltage Protection:
♦ 5.8 V (Typ) on CC Port
♦ 4.5 V (Typ) on SBU Port
♦ 4.5 V (Typ) on DP/R and DN/L Port
• OMTP and CTIA Pinout Support
• Support Audio Sense Path
• Support Dead Battery
• 25−ball WLCSP Package (2.03 mm x 2.03 mm)
• This is a Pb−Free Device
Applications
• Mobile Phone, Tablet, Notebook PC, Media Player
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
May, 2022 − Rev. 4
FSA4476/D
FSA4476
VBAT
VBUS
CC1
CC1_H
CC1
CC2
CC
Logic
CC2_H
CC2
USB Type−C
Receptacle
GND
GND
FSA4476
SSRXp1
SSRXn1
VBUS
SBU2
DN
SSTXp1
SSTXn1
VBUS
CC1
L
DN/L
DP/R
HPL
HPR
DN
R
Audio Codec
DP
DP
DP
DN
SENSE
CC2
SBU1
VBUS
SSRXn2
MIC
MIC
VBUS
SSTXn2
SSTXp2
GND
SBU2
SBU1
SSRXp2
GND
GND_M
DN
DP
EN1
EN2
GPIO1
GPIO2
INT1
INT1
SBU2_H
AP
SBU2
SBU1
CTL
SBU1_H
EN
INT
INT
GND
Figure 1. Application Block Diagram
PIN CONFIGURATION
A
VBUS
VBAT
SBU1_H
INT1
INT
NC
CC2_H
CC1_H
CC1
B
C
SBU2_H
GND_M
GND
CC2
L
ENN
EN1
DN/L
DP/R
D
E
MIC
R
SBU2
SBU1
EN2
DP
DN
1
2
3
4
5
Figure 2. Pin Assignment (Top Through View)
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2
FSA4476
PIN DESCRIPTIONS
Name
VBUS
VBAT
GND
DP/R
DN/L
DP
Ball
A1
A2
D1
D5
C5
E4
E5
C4
D4
E2
E1
D2
C1
B2
B1
B5
B4
A5
A4
A3
C2
Description
Power Supply
Power Supply
Ground
USB Positive Data/Right Audio Common Line
USB Negative Data/Left Audio Common Line
Positive DataLine for USB signals
Negative DataLine for USB signals
Left Line for Audio Signals
DN
L
R
Right Line for Audio Signals
SBU1
SBU2
MIC
Sideband Use Wire 1 Common Line
Sideband Use Wire 2 Common Line
Microphone, connects to microphone pre−amplifier
Sense Pin to Detect GND offset
Host Side Sideband Use Wire 1
Host Side Sideband Use Wire 2
Configuration Channel 1
GND_M
SBU1_H
SBU2_H
CC1
CC2
Configuration Channel 2
CC1_H
CC2_H
INT
Host Side Configuration Channel 1
Host Side Configuration Channel 2
OVP Interrupt Output, active low (open drain)
INT1
Interrupt Output Signal; During EN1=1, INT1 is low active (open drain output) when CC1_H < 1.2 V and
CC2_H < 1.2 V.
ENN
EN1
EN2
NC
C3
D3
E3
B3
Chip Enable, active low, internal pull−down by 1Mohm.
Logic Configuration Input 1
Logic Configuration Input 2
No Connect
TRUTH TABLE
Headset
Detection
USB
Switch
Audio
Switch
MIC SW /
GND_M SW
SBU Bypass
Switch
Power
OFF
ON
ENN
X
EN1,EN2
XX
CC Switch
Dead battery
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
H
XX
ON
L
00
ON
ON:
ON:
DP/R to DP
DN/L to DN
SBU1 to SBU1_H
SBU2 to SBU2_H
ON
ON
L
L
01
10
ON
ON
OFF
ON
ON:
DP/R to DP
DN/L to DN
OFF
OFF
ON:
SBU1 to SBU2_H
SBU2 to SBU1_H
OFF
ON:
DP/R to R
DN/L to L
ON:
OFF
SBU1 to MIC
SBU2 to GND_M
SBU2 to GND
ON
L
11
ON
ON
OFF
ON:
DP/R to R
DN/L to L
ON:
OFF
SBU2 to MIC
SBU1 to GND_M
SBU1 to GND
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3
FSA4476
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Min
−0.5
−0.5
−0.5
−0.5
−3.5
−0.5
−3.5
−0.5
−0.5
−0.5
−0.5
−
Max
6.5
28
Unit
V
V
Supply Voltage from VBAT
Supply Voltage from VBUS
BAT
VBUS
V
V
V
V
V
V
, to GND
20
V
VICC
CCx
V
, to GND
to GND, V
6.5
16
V
VCC_H
SW_USB/Audio
CCx_H
V
to GND
DN_L
V
DP_R
V
to GND, V to GND
6.5
+3.5
20
V
SW_USB
DP
DN
V
V to GND, V to GND
V
SW_Audio
L
R
V
V
V
to GND, V to GND
SBU2
V
VSBU
SBU1
V
to GND, V
to GND
6.5
6.5
6.5
1.25
250
100
50
V
VSBU_H
SBU1_H
SBU2_H
V
MIC,GND_M, INT,INT1to GND
Control Input Voltage
V
I/O
V
ENN, ENx
V
CNTRL
CCSW
I
CC Switch Current
A
I
Switch I/O Current, Audio Path
Switch I/O Current, USB Path
Switch I/O Current, MIC to SBU1 or SBU2
Switch I/O Current, GND_M to SBU1 or SBU2
Switch I/O Current, GND to SBU1 or SBU2
DC Input Diode Current
−250
−
mA
mA
mA
mA
mA
mA
kV
SW_Audio
I
SW_USB
I
−
SW_MIC
I
−
100
500
−
SW_GND_M
I
−
SW_GND
I
IK
−50
4
ESD
Human Body Model, ANSI/ESDA/JEDEC
JS−001−2012
Connector Side and Power Pins: VBUS,
−
V
BAT
, CC1, CC2, SBU1, SBU2, DP/R, DN/L
Host Side Pins: The Rest Pins
2
−
−
Charged Device Model, JEDEC: JESD22−C101
Absolute Maximum Operating Temperature
Storage Temperature
1
T
−40
−65
+85
+150
°C
°C
A
T
STG
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
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4
FSA4476
RECOMMENDED OPERATING CONDITIONS
Symbol
POWER
Parameter
Min
Max
Max
Unit
VBAT
VBUS
Supply Voltage
Supply Voltage
2.7
4.0
−
−
5.5
20
V
V
USB SWITCH
VSW_USB
V
DP
to GND, V to GND, V
GND, V to GND
DN/L
0
−
4.0
V
DN
DP/Rto
AUDIO SWITCH
VSW_Audio
VSW_MIC
SBU SWITCH
VVSBU
V
GND, V
to GND, V to GND, V to GND
−3
0
−
−
+3
V
V
DP/Rto
DN/L
L
R
MIC to GND
3.6
V
SBU1
to GND, V
to GND, V
to GND, V to GND
SBU2_H
0
−
4.0
V
SBU2
SBU1_H
CC SWITCH
VVICC
V
V
, to GND
0
0
−
−
−
5.5
5.5
V
V
A
CCx
VVCC_H
, to GND
CCx_H
ICCSW
CC Switch Current
1.25
CONTROL VOLTAGE (ENN, ENX)
VIH
VIL
Input Voltage High
Input Voltage Low
1.3
−
−
−
−
V
V
0.5
OPERATING TEMPERATURE
TA Ambient Operating Temperature
−40
25
+85
°C
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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5
FSA4476
DC CHARACTERISTICS (VBAT = 2.7 V to 5.5 V or VBUS = 4.0 V to 20 V, VBAT (Typ.) = 4.3 V or VBUS (Typ.) = 5 V, T = −40°C to
A
85°C, and T (Typ.) = 25°C, unless otherwise specified.) (Note 1)
A
T =−405C to +855C
A
Min
Typ
25
5
Max
Symbol
Parameter
VBAT Supply Current
Quiescent Current
Condition
Power
Unit
ꢁA
I
VBAT = 4.3 V
VBAT = 4.3 V
−
−
CC
I
−
−
ꢁA
CCZ
USB/AUDIO COMMON PINS
I
Off Leakage Current of Port
DP/R and DN/L
DN/L, DP/ R = −3 V to 4.0 V
DN/L, DP/R = 0 V to 4.0 V
Rising edge
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−3.0
−3.0
−
−
3.0
3.0
ꢁA
ꢁA
OZ
I
Power−Off Leakage Current
of Port DP/R and DN/L
Power off
OFF
V
Input OVP Lockout
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
4.2
−
4.5
0.3
4.8
−
V
V
OV_TRIP
V
Input OVP Hysteresis
OV_HYS
AUDIO SWITCH
I
On Leakage Current of
Audio Switch
DN/L, DP/R = −3 V to 3.0 V,
DP, DN, R, L = Float
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−2.0
−1.0
−
0.1
−
2.0
1.0
−
ꢁA
ꢁA
ꢀ
ON
I
Power−Off Leakage Current
on L and R
L, R = 0 V to 3 V
Power off
OFF
R
Switch On Resistance
I
= 100 mA, V = −3 V
SW
VBAT: 2.7 V to 5.5 V or
VBUS: 4 V to 20 V
0.6
10
ON
SW
to 3 V
R
Pull Down Resistor on R/L
Pin when Audio Switch is Off
L = R = 3 V
6
14
kꢀ
SHUNT
USB SWITCH
I
On Leakage Current of USB
Switch
DN/L, DP/R = 0 V to 4.0 V,
DP, DN, R, L = Float
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−3.0
−3.0
−3.0
−
1.0
−
3.0
3.0
3.0
−
ꢁA
ꢁA
ꢁA
ꢀ
ON
I
Off Leakage Current of Port
DP and DN
DN, DP = 0 V to 4.0 V
OZ
I
Power−Off Leakage Current
on DP and DN
DN, DP = 0 V to 4.0 V
Power off
−
OFF
R
USB Switch On Resistance
I
= 8 mA, V = 0.4 V
SW
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
3
ON_USB
SW
CC SWITCH
I
On Leakage Current of CC
Switch
Vsw from 0 V to 3.6 V
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−1.5
−
2.0
ꢁ
A
ON
R
CC Path On Resistance
Input OVP Lockout
I
= 200 mA, V = 5 V
SW
−
5.6
−
300
5.8
0.3
5.1
−
6.1
−
mꢀ
V
ON
OUT
V
Rising edge
OV_TRIP
V
Input OVP Hysteresis
V
OV_HYS
R
Dead Battery Pull Down
Resistance
350 ꢁA on CCx pin
EN1 = H
VBAT < 2.4 V and
VBUS < 3.5 V
4.08
6.12
kꢀ
d
V
CCx_H High Threshold
under Headset Detection
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−
−
1.5
1.2
−
−
V
V
THR_H
V
THR_L
CCx_Hlow Threshold under
Headset Detection
EN1 = H
SBU COMMON PINS
I
Off Leakage Current of Port
SBUx
SBUx = 0 V to 4 V
SBUx= 0 V to 4 V
Rising edge
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−3.0
−3.0
−
−
3.0
3.0
ꢁA
ꢁA
OZ
I
Power−Off Leakage Current
of Port SBUx
Power off
OFF
V
Input OVP Lockout
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
4.2
−
4.5
0.3
4.8
−
V
V
OV_TRIP
V
Input OVP Hysteresis
OV_HYS
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6
FSA4476
DC CHARACTERISTICS (VBAT = 2.7 V to 5.5 V or VBUS = 4.0 V to 20 V, VBAT (Typ.) = 4.3 V or VBUS (Typ.) = 5 V, T = −40°C to
A
85°C, and T (Typ.) = 25°C, unless otherwise specified.) (Note 1) (continued)
A
T =−405C to +855C
A
Min
Typ
Max
Symbol
Parameter
Condition
Power
Unit
MIC SWITCH
I
On Leakage Current of MIC
Switch
SBUx = 0 V to 3.6 V, MIC is
floating
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−3.0
−
3.0
ꢁ
A
ON
I
Off Leakage Current on MIC
MIC = 0 V to 3.6 V
MIC = 0 V to 3.6 V
−1.0
−1.0
−
−
1.0
1.0
ꢁA
ꢁA
OZ
I
Power Off Leakage Current
on MIC
Power off
OFF
R
ON
MIC Switch On Resistance
MIC = 0 V to 3.6 V,
Isw = 30 mA
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−
2
−
ꢀ
GND_M SWITCH
I
Off Leakage on GND_M
GND_M = 0 V to 3.6 V
GND_M = 0 V to 3.6 V
Isw = 30 mA
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−2.0
−1.0
−
−
−
2.0
1.0
−
ꢁA
ꢁA
ꢀ
OZ
I
Power Off Leakage Current
on GND_M
Power off
OFF
R
GND_M Switch On
Resistance
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
0.5
ON
SBU BYPASS SWITCH
I
On Leakage Current of SBU
Bypass Switch
SBUx= 0 V to 4 V, SBUx_H
is floating
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−1.0
−1.0
−
−
−
3
2.0
1.0
−
ꢁA
ꢁA
ꢀ
ON
I
Off Leakage Current on
SBUx_H
SBUx_H = 0 V to 4 V
OZ
R
SBU Bypass Switch On
Resistance
SBUx = 0 V to 3.6 V,
Isw = 50 mA
ON
INTERNAL GND SWITCH
R
ON
Internal GND Switch On Re-
sistance
Isw = 200 mA
VBAT: 2.7 V to 5.5 V
or VBUS: 4 V to 20 V
−
75
110
(Note 2)
mꢀ
1. Limits over the recommended temperature operating range (T = −40°C to +85°C) are correlated by statistical quality.
A
2. Guaranteed by characterization, not production tested.
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7
FSA4476
AC CHARACTERISTICS (VBAT = 2.7 V to 5.5 V or VBUS = 4.0 V to 20 V, VBAT (Typ.) = 4.3 V or VBUS (Typ.) = 5 V, T = −40°C to
A
85°C. T (Typ.) = 25°C, unless otherwise specified.)
A
T =−405C to +855C
A
Min
Typ
Max
Symbol
Parameter
Condition
Power
Unit
AUDIO SWITCH
t
Turn On Time (Note 3)
DP/R = DN/L = 1.5 V,
R = 50 ꢀ
L
VBAT: 4.3 V
or VBUS: 5 V
−
−
−
55
2
−
−
−
ꢁs
ꢁs
dB
ON
t
Turn OFF Time (Note 3)
Cross Talk (Adjacent) (Note 3)
DP/R = DN/L = 1.5 V,
R = 50 ꢀ
L
OFF
X
TALK
f = 1 kHz, R = 50 ꢀ,
−110
L
V
SW
= 1 V
RMS
BW
−3 dB Bandwidth (Note 3)
Off Isolation (Note 3)
R = 50 ꢀ
−
−
950
−
−
MHz
dB
L
O
IRR
f= 1 kHz, R = 50 ꢀ,
−100
L
C = 0 pF, V
= 1 V
L
SW
RMS
THD+N
Total Harmonic Distortion + Noise
Performance with A− Weighting
Filter (Note 3)
−
−
−
−110
−110
−108
−
−
−
dB
dB
dB
R = 600 ꢀ,
L
f = 20 Hz~20 kHz,
= 2 V
V
SW
RMS
R = 32 ꢀ,
L
f = 20 Hz~20 kHz,
= 1 V
V
SW
RMS
R = 16, ,
L
f = 20 Hz~20 kHz,
= 0.5 V
V
SW
RMS
USB SWITCH
t
Turn−on Time (Note 3)
Turn−off Time (Note 3)
−3 dB Bandwidth (Note 3)
DP/R = DN/L = 1.5 V,
R = 50 ꢀ
L
VBAT: 4.3 V
or VBUS: 5 V
−
−
40
1
−
−
ꢁs
ꢁs
ON
t
DP/R = DN/L = 1.5 V,
R = 50 ꢀ
L
OFF
BW
R = 50 ꢀ
L
−
−
1
−
−
GHz
dB
O
Off Isolation (Note 3) between DP, f = 1 kHz, R = 50 ꢀ,
−100
IRR
L
DN and Common Node Pins
C = 0 pF, V
= 1 V
SW RMS
L
t
DP/R and DN/L Pins OVP
Response Time (Note 3)
R = 50 ꢀ, Vsw = 3.5 V to
5.5 V
−
0.5
1.5
ꢁ
s
OVP
L
CC SWITCH
t
Turn−On Time (Note 3)
Turn−Off Time (Note 3)
PD Traffic Bandwidth (Note 3)
V
V
= 5 V, R = 5 kꢀ
VBAT: 4.3 V
or VBUS: 5 V
−
−
−
−
0.5
3
−
−
−
1
ms
ꢁs
ON
ICCx
L
t
= 5 V, R = 5 kꢀ
L
OFF
ICCx
BW
R = 50 ꢀ
25
0.6
MHz
ꢁs
L
CCx Pins OVP Response Time
(Note 3)
R = 25 ꢀ, C = 200 pF,
L
L
V
SW
: 4 V to 7 V
t
OVP
SBUX BYPASS SWITCH
t
SBUx Pins OVP Response Time
(Note 3)
R = 50 ꢀ, Vsw = 3.5 V to
5.5 V
VBAT: 4.3 V
or VBUS: 5 V
−
0.6
1
ꢁs
ꢁs
OVP
L
t
Turn−On Time (Note 3)
Turn−OFF Time (Note 3)
Isw on SBUx = 1 mA and
VBAT: 4.3 V
or VBUS: 5 V
−
−
12
1
−
−
ON
clamp to 2 V, R on MIC and
L
SBUx_H = 1 kꢀ,
GND_M = 100 mV, series
50 ꢀ on GND_M pin
t
OFF
BW
Bandwidth (Note 3)
R = 50 ꢀ
L
−
25
−
MHz
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8
FSA4476
AC CHARACTERISTICS (VBAT = 2.7 V to 5.5 V or VBUS = 4.0 V to 20 V, VBAT (Typ.) = 4.3 V or VBUS (Typ.) = 5 V, T = −40°C to
A
85°C. T (Typ.) = 25°C, unless otherwise specified.) (continued)
A
T =−405C to +855C
A
Min
Typ
Max
Symbol
Parameter
Condition
Power
Unit
MIC/GND_M/INTERNAL GND SWITCH
t
Turn−On Time (Note 3)
Isw on SBUx = 1 mA and
VBAT: 4.3 V
or VBUS: 5 V
−
−
−
10
60
950
1
−
−
−
−
−
−
−
ꢁs
ON_MIC
clamp to 2 V, R on MIC and
L
t
ON_GND_M
SBUx_H = 1 kꢀ,
GND_M = 100 mV, series
50 ꢀ on GND_M pin
t
ON_GND
Turn−OFF Time (Note 3)
tOFF_MIC
tOFF_GND_M
−
−
−
1
tOFF_GND
1
BW
MIC Switch Bandwidth (Note 3)
R = 50 ꢀ
L
25
MHz
INTERRUPT DELAY
T
INT Response Delay (Note 3)
INT pull up by 10k resistor
to valid power
VBAT: 4.3 V
or VBUS: 5 V
−
−
5
5
−
−
ꢁs
DELAY_INT
T
INT1 Response Delay (Note 3)
INT1 pull up by 10k resistor
to valid power
DELAY_INT1
3. Guaranteed by characterization, not production tested
CAPACITANCE (Unless otherwise stated VBAT = 2.7 V to 5.5 V or VBUS = 4.0 V to 20 V, VBAT (Typ.) = 4.3 V or VBUS (Typ.) = 5 V,
T = −40°C to 85°C, and T (Typ.) = 25°C.)
A
A
T =−405C to +855C
A
Min
Typ
Max
Symbol
Parameter
Condition
Power
Unit
C
On Capacitance
(Common Port) (Note 4)
f = 1 MHz, 100 mV
100 mV DC bias
,
,
,
VBAT: 4.3 V
or VBUS: 5 V
−
−
−
−
−
−
−
7
−
−
−
−
−
−
−
pF
ON_USB/Audio
PK−PK
PK−PK
PK−PK
C
Off Capacitance
(Common Port) (Note 4)
f = 1 MHz, 100 mV
100 mV DC bias
7
2
pF
pF
pF
pF
pF
pF
OFF_USB/Audio
C
Off Capacitance
(Non−Common Ports) (Note 4) 100 mV DC bias Figure 12
f = 1 MHz, 100 mV
OFF_USB
C
Off Capacitance
(Non−Common Ports) (Note 4) 100 mV DC bias
f = 1 MHz, 100 mV
,
,
,
12
140
150
6
OFF_SBUx_H
PK−PK
PK−PK
PK−PK
C
Off Capacitance
(Common Ports) (Note 4)
f = 1 MHz, 100 mV
100 mV DC bias
OFF_SBUx
C
On Capacitance
(Common Port) (Note 4)
f = 1 MHz, 100 mV
100 mV DC bias
ON_SBUx
Control Input Pin
Capacitance (ENx) (Note 4)
f = 1 MHz, 100 mV
100 mV DC bias
,
ENx,
ENN
PP
C
CNTRL
4. Guaranteed by characterization, not production tested
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9
FSA4476
APPLICATION INFORMATION
Dead Battery
Headset detection
FSA44776 supports dead battery application. When
power is not applied to FSA4476 and it is attached to a
Source device, then the Source would pull up the CC line
connected through the cable. FSA4476 in response would
turn on the pull−down that will bring the CC voltage to a
range that the Source can detect an attach event and turn on
VBUS.
FSA4476 integrates headset unplug detection function by
detecting the CCx_H voltage. The headset detection is only
active during audio switch on status(EN1 = 1). When
headset is attached (both CC1_H and CC2_H are Low), the
flag signal is sent low to host controller by INT1 (INT1 =
low). Once either of CCx_H = High (CCx_H > 1.5 V), INT1
will be released to high by external pull up resistor.
POWER SUPPLY CONFIGURATION
VBUS
Invalid
Valid
VBAT
Invalid
Invalid
Valid
Power Supply
Max (VBAT VBUS)
,
VBUS
VBAT
VBAT
Invalid
Valid
Valid
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10
FSA4476
TEST DIAGRAMS
V
ON
I
NO
Float
V
SW
V
SW
I
Select
SW
GND
GND
Select
GND
= 0 or V
V
SEL
= 0 or V
DD
V
SEL
DD
**Each switch port is tested separately
R
= V / I
ON
ON SW
Figure 3. On Resistance
Figure 4. Off Leakage (Ioz)
I
NO
Float
I
ON
Float
A
V
SW
V
SW
Select
= VBUS = 0 V
Select
= 0 or V
GND
GND
V
BAT
V
SEL
DD
**Each switch port is tested separately
Figure 5. On Leakage
Figure 6. Power Off Leakage (Ioff)
90%
ENx
VI/O IN
10%
V
SW
V
OUT
90%
H = 3.3 V
L = 0 V
R
C
R
L
GND
S
L
10%
GND
T
OFF
90%
T
ON
VI/O OUT
H = 3.3 V
L = 0 V
V
SEL
R and C are function of application
L
L
10%
environment (see AC/DC Tables)
C includes test fixture and stray capacitance
GND
T
OFF
T
ON
L
Figure 7. Test Circuit Load
Figure 8. Turn On/Off Waveforms
Network Analyzer
Network Analyzer
R
R
S
S
V
S
V
S
V
IN
V
GND
CNTRL
R
T
GND
V
GND
V
SEL
V
OUT
GND
GND
OUT
GND
GND
R
R
T
T
R
and R are function of application
T
environment (see AC/DC Tables)
R and C are function of application
environment (see AC/DC Tables)
S
L
L
C includes test fixture and stray capacitance
L
OFF − Isolation = 20 Log (V /V
OUT IN
)
Figure 9. Bandwidth
Figure 10. Channel Off Isolation
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11
FSA4476
Network Analyzer
R
S
V
IN
V
SEL
GND
V
S
V
OUT
GND
GND
R
T
R
T
Capacitance
Meter
GND
CROSSTALK = 20 Log (V
V
SEL
= 0 or V
DD
/V
OUT IN
)
R
and R are function of application
T
environment (see AC/DC Tables)
S
F = 1 MHz
Figure 11. Adjacent Channel Crosstalk
Figure 12. Channel Off Capacitance
Network Analyzer
R
S
V
IN
V
S
GND
Meter
V
SEL
GND
V
OUT
V
SEL
= 0 or V
DD
GND
R
T
F = 1 MHz
R and C are function of application
environment (see AC/DC Tables)
C includes test fixture and stray capacitance
L
L
L
Figure 13. Channel On Capacitance
Figure 14. Total Harmonic Distortion (THD+N)
ORDERING INFORMATION
†
Part Number
FSA4476UCX
Top Mark
Package Description
Shipping
GR
25 Ball WLCSP25, 2.03x2.03x0.586
(Pb−Free)
3000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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12
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP25, 2.03x2.03x0.586
CASE 567UP
ISSUE A
DATE 21 MAY 2019
SCALE 4:1
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
DOCUMENT NUMBER:
DESCRIPTION:
98AON64860G
WLCSP25, 2.03x2.03x0.586
PAGE 1 OF 1
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