DS90UB903Q, DS90UB904Q
www.ti.com
SNLS332E – JUNE 2010 – REVISED APRIL 2013
DS90UB903Q/DS90UB904Q 10 - 43MHz 18 Bit Color FPD-Link III Serializer and
Deserializer with Bidirectional Control Channel
Check for Samples: DS90UB903Q, DS90UB904Q
FEATURES
DESCRIPTION
•
•
•
•
The DS90UB903Q/DS90UB904Q chipset offers a
FPD-Link III interface with a high-speed forward
channel and a bidirectional control channel for data
transmission over a single differential pair. The
DS90UB903Q/904Q
incorporates
differential
signaling on both the high-speed forward channel and
bidirectional control channel data paths. The
Serializer/ Deserializer pair is targeted for direct
connections between graphics host controller and
displays modules. This chipset is ideally suited for
driving video data to displays requiring 18-bit color
depth (RGB666 + HS, VS, and DE) along with
bidirectional control channel bus. The primary
transport converts 21 bit data over a single highspeed serial stream, along with a separate low
latency bidirectional control channel transport that
accepts control information from an I2C port. Using
TI’s embedded clock technology allows transparent
full-duplex communication over a single differential
pair, carrying asymmetrical bidirectional control
channel information in both directions. This single
serial stream simplifies transferring a wide data bus
over PCB traces and cable by eliminating the skew
problems between parallel data and clock paths. This
significantly saves system cost by narrowing data
paths that in turn reduce PCB layers, cable width,
and connector size and pins.
1
2
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
10 MHz to 43 MHz Input PCLK Support
210 Mbps to 903 Mbps Data Throughput
Single Differential Pair Interconnect
Bidirectional Control Interface Channel with
I2C Support
Embedded Clock with DC Balanced Coding to
Support AC-Coupled Interconnects
Capable to Drive up to 10 Meters Shielded
Twisted-Pair
I2C Compatible Serial Interface
Single Hardware Device Addressing Pin
Up to 4 General Purpose Input (GPI)/ Output
(GPO)
LOCK Output Reporting Pin and AT-SPEED
BIST Diagnosis Feature to Validate Link
Integrity
Integrated Termination Resistors
1.8V- or 3.3V-Compatible Parallel Bus Interface
Single Power Supply at 1.8V
ISO 10605 ESD and IEC 61000-4-2 ESD
Compliant
Automotive Grade Product: AEC-Q100 Grade 2
Qualified
Temperature Range −40°C to +105°C
No Reference Clock Required on Deserializer
Programmable Receive Equalization
EMI/EMC Mitigation
– DES Programmable Spread Spectrum
(SSCG) Outputs
– DES Receiver Staggered Outputs
In addition, the Deserializer inputs provide
equalization control to compensate for loss from the
media over longer distances. Internal DC balanced
encoding/decoding is used to support AC-Coupled
interconnects.
The Serializer is offered in a 40-pin lead in WQFN
and Deserializer is offered in a 48-pin WQFN
packages.
APPLICATIONS
•
Automotive Display Systems
– Central Information Displays
– Navigation Displays
– Rear Seat Entertainment
– Touch Screen Displays
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2013, Texas Instruments Incorporated
DS90UB903Q, DS90UB904Q
SNLS332E – JUNE 2010 – REVISED APRIL 2013
www.ti.com
Typical Application Diagram
FPD-Link III
Parallel
Data In
18+3
Graphics
Controller
-Video
Processor
Parallel
Data Out
18+3
4
Display
Module,
Touch Panel
4
DS90UB903Q
DS90UB904Q
GPO
GPI
Bidirectional
Control Channel
2
Bidirectional
Control Bus
2
Bidirectional
Control Bus
Deserializer
Serializer
Figure 1. Typical Application Circuit
DOUT+
DOUT-
RIN+
RT
RT
Output Latch
RT
Decoder
Serializer
4
RT
Deserializer
GPO[3:0]
Encoder
R/G/B[5:0], 21
HS,VS,DE
Input Latch
Block Diagrams
21 R/G/B[5:0],
HS,VS,DE
4
GPI[3:0]
RINPCLK
PDB
BISTEN
MODE
LOCK
PASS
I2C Controller
Decoder
Encoder
FIFO
Encoder
Timing
and
Control
Decoder
ID[x]
I2C Controller
SCL
Clock
Gen
CDR
Timing
and
Control
PDB
MODE
SDA
Clock
Gen
PLL
FIFO
PCLK
SDA
SCL
ID[x]
DS90UB904Q - DESERIALIZER
DS90UB903Q - SERIALIZER
Figure 2. Block Diagram
DS90UB903Q
Serializer
Graphics
Controller
--Video
Processor
DS90UB904Q
Deserializer
FPD-Link III
R[5:0]
G[5:0]
B[5:0]
VS
HS
DE
PCLK
PLL
PDB
MODE
Config.
R[5:0]
G[5:0]
B[5:0]
VS
HS
DE
PCLK
Config.
PDB
MODE
BISTEN
GPI[3:0]
Timing
Controller
LCD
Display
--Touch Panel
GPO[3:0]
PC
SDA
SCL
2
I C
2
I C
SDA
SCL
PC
Figure 3. Application Block Diagram
2
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SNLS332E – JUNE 2010 – REVISED APRIL 2013
VDDIO
31
DIN[8]
32
DIN[9]
33
VDDD
34
DIN[7]
DIN[6]
DIN[5]
DIN[4]
DIN[3]
DIN[2]
DIN[1]
DIN[0]
GPO[3]
GPO[2]
30
29
28
27
26
25
24
23
22
21
DS90UB903Q Pin Diagram
DAP = GND
DS9UB903Q
Serializer
40-Pin WQFN
(Top View)
20
GPO[1]
19
GPO[0]
18
VDDCML
17
DOUT+
16
DOUT-
15
VDDT
11
RES
RES
DIN[16]
10
40
9
DIN[15]
ID[x]
MODE
8
12
SDA
39
7
DIN[14]
SCL
PDB
6
13
PCLK
38
5
DIN[13]
DIN[20]
VDDPLL
4
14
DIN[19]
37
3
DIN[12]
DIN[18]
36
2
DIN[11]
DIN[17]
35
1
DIN[10]
Serializer - DS90UB903Q
40 Pin WQFN (Top View)
See Package Number RTA0040A
DS90UB903Q SERIALIZER PIN DESCRIPTIONS
Pin Name
Pin No.
I/O, Type
Description
LVCMOS PARALLEL INTERFACE
DIN[20:0]
PCLK
5, 4, 3, 2, 1,
40, 39, 38, 37,
36, 35, 33, 32,
30, 29, 28, 27,
26, 25, 24, 23
6
Inputs,
LVCMOS
w/ pull down
Parallel data inputs.
Input, LVCMOS Pixel Clock Input Pin. Strobe edge set by TRFB control register.
w/ pull down
GENERAL PURPOSE OUTPUT (GPO)
GPO[3:0]
22, 21, 20, 19
Output,
LVCMOS
General-purpose output pins can be used to control and respond to various
commands.
BIDIRECTIONAL CONTROL BUS - I2C COMPATIBLE
SCL
7
Input/Output,
Open Drain
Clock line for the bidirectional control bus communication
SCL requires an external pull-up resistor to VDDIO.
SDA
8
Input/Output,
Open Drain
Data line for the bidirectional control bus communication
SDA requires an external pull-up resistor to VDDIO.
MODE
12
ID[x]
9
I2C Mode select
MODE = L, Master mode (default); Device generates and drives the SCL clock line.
Device is connected to slave peripheral on the bus. (Serializer initially starts up in
Input, LVCMOS
Standby mode and is enabled through remote wakeup by Deserializer)
w/ pull down
MODE = H, Slave mode; Device accepts SCL clock input and attached to an I2C
controller master on the bus. Slave mode does not generate the SCL clock, but uses
the clock generated by the Master for the data transfers.
Input, analog
Device ID Address Select
Resistor to Ground and 10 kΩ pull-up to 1.8V rail. See Table 3
CONTROL AND CONFIGURATION
Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: DS90UB903Q DS90UB904Q
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SNLS332E – JUNE 2010 – REVISED APRIL 2013
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DS90UB903Q SERIALIZER PIN DESCRIPTIONS (continued)
Pin Name
Pin No.
PDB
13
RES
10, 11
I/O, Type
Description
Power down Mode Input Pin.
PDB = H, Serializer is enabled and is ON.
Input, LVCMOS
PDB = L, Serailizer is in Power Down mode. When the Serializer is in Power Down,
w/ pull down
the PLL is shutdown, and IDD is minimized. Programmed control register data are
NOT retained and reset to default values
Input, LVCMOS Reserved.
w/ pull down
This pin MUST be tied LOW.
FPD-LINK III INTERFACE
Input/Output,
CML
Non-inverting differential output, bidirectional control channel input. The interconnect
must be AC Coupled with a 100 nF capacitor.
16
Input/Output,
CML
Inverting differential output, bidirectional control channel input. The interconnect must
be AC Coupled with a 100 nF capacitor.
VDDPLL
14
Power, Analog
PLL Power, 1.8V ±5%
VDDT
15
Power, Analog
Tx Analog Power, 1.8V ±5%
VDDCML
18
Power, Analog
CML & Bidirectional Channel Driver Power, 1.8V ±5%
VDDD
34
Power, Digital
Digital Power, 1.8V ±5%
Power, Digital
Power for I/O stage. The single-ended inputs and SDA, SCL are powered from VDDIO.
VDDIO can be connected to a 1.8V ±5% or 3.3V ±10%
Ground, DAP
DAP must be grounded. DAP is the large metal contact at the bottom side, located at
the center of the WQFN package. Connected to the ground plane (GND) with at least
16 vias.
DOUT+
17
DOUTPOWER AND GROUND
VDDIO
VSS
4
31
DAP
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Product Folder Links: DS90UB903Q DS90UB904Q
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SNLS332E – JUNE 2010 – REVISED APRIL 2013
PASS
37
GPI[3]
VDDIO1
ROUT[0]
ROUT[1]
ROUT[2]
ROUT[3]
31
30
29
28
27
26
25
33
GPI[1]
GPI[0]
34
GPI[2]
LOCK
35
32
VDDR
PDB
36
DS90UB904Q Pin Diagram
DAP = GND
24
ROUT[4]
RES/CMLOUTP
38
23
ROUT[5]
RES/CMLOUTN
39
22
ROUT[6]
VDDCML
40
21
ROUT[7]
RIN+
41
20
VDDIO2
RIN-
42
19
ROUT[8]
DS90UB904Q
Deserializer
48-Pin WQFN
(Top View)
8
9
10
11
12
ROUT[16]
ROUT[15]
ROUT[14]
ROUT[13]
ROUT[17]
13
ROUT[18]
48
7
ROUT[12]
6
14
VDDIO3
47
ID[x]
5
MODE
ROUT[19]
ROUT[11]
ROUT[20]
ROUT[10]
15
4
16
46
3
45
RES
PCLK
VDDPLL
VDDSSCG
VDDD
2
ROUT[9]
17
1
18
44
SCL
43
SDA
RES
BISTEN
Deserializer - DS90UB904Q
48 Pin WQFN (Top View)
See Package Number RHS0048A
DS90UB904Q DESERIALIZER PIN DESCRIPTIONS
Pin Name
Pin No.
I/O, Type
Description
LVCMOS PARALLEL INTERFACE
ROUT[20:0]
PCLK
5, 6, 8, 9, 10,
11, 12, 13, 14,
15, 16, 18, 19,
21, 22, 23, 24,
25, 26, 27, 28
4
Outputs,
LVCMOS
Parallel data outputs.
Output,
LVCMOS
Pixel Clock Output Pin.
Strobe edge set by RRFB control register.
GENERAL PURPOSE INPUT (GPI)
GPI[3:0]
30, 31, 32, 33
Input, LVCMOS
General-purpose input pins can be used to control and respond to various
commands.
BIDIRECTIONAL CONTROL BUS - I2C COMPATIBLE
SCL
2
Input/Output,
Open Drain
Clock line for the bidirectional control bus communication
SCL requires an external pull-up resistor to VDDIO.
SDA
1
Input/Output,
Open Drain
Data line for bidirectional control bus communication
SDA requires an external pull-up resistor to VDDIO.
MODE
47
ID[x]
48
I2C Mode select
MODE = L, Master mode; Device generates and drives the SCL clock line, where
Input, LVCMOS required such as Read. Device is connected to slave peripheral on the bus.
w/ pull up
MODE = H, Slave mode (default); Device accepts SCL clock input and attached to an
I2C controller master on the bus. Slave mode does not generate the SCL clock, but
uses the clock generated by the Master for the data transfers.
Input, analog
Device ID Address Select
Resistor to Ground and 10 kΩ pull-up to 1.8V rail. See Table 4.
CONTROL AND CONFIGURATION
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Product Folder Links: DS90UB903Q DS90UB904Q
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DS90UB904Q DESERIALIZER PIN DESCRIPTIONS (continued)
Pin Name
Pin No.
PDB
35
LOCK
34
RES
I/O, Type
Description
Power down Mode Input Pin.
PDB = H, Deserializer is enabled and is ON.
Input, LVCMOS
PDB = L, Deserializer is in Power Down mode. When the Deserializer is in Power
w/ pull down
Down. Programmed control register data are NOT retained and reset to default
values.
Output,
LVCMOS
38, 39, 43, 46
-
LOCK Status Output Pin.
LOCK = H, PLL is Locked, outputs are active
LOCK = L, PLL is unlocked, ROUT and PCLK output states are controlled by
OSS_SEL control register. May be used as Link Status.
Reserved.
Pins 38, 39: Route to test point or leave open if unused. See also FPD-LINK III
INTERFACE pin description section.
Pin 46: This pin MUST be tied LOW.
Pin 43: Leave pin open.
BIST MODE
BISTEN
44
PASS
37
BIST Enable Pin.
Input, LVCMOS
BISTEN = H, BIST Mode is enabled.
w/ pull down
BISTEN = L, BIST Mode is disabled.
Output,
LVCOMS
PASS Output Pin for BIST mode.
PASS = H, ERROR FREE Transmission
PASS = L, one or more errors were detected in the received payload.
Leave Open if unused. Route to test point (pad) recommended.
FPD-LINK III INTERFACE
RIN+
41
Input/Output,
CML
Non-inverting differential input, bidirectional control channel output. The interconnect
must be AC Coupled with a 100 nF capacitor.
RIN-
42
Input/Output,
CML
Inverting differential input, bidirectional control channel output. The interconnect must
be AC Coupled with a 100 nF capacitor.
CMLOUTP
38
Output, CML
Non-inverting CML Output
Monitor point for equalized differential signal. Test port is enabled via control
registers.
CMLOUTN
39
Output, CML
Inverting CML Output
Monitor point for equalized differential signal. Test port is enabled via control
registers.
VDDSSCG
3
Power, Digital
SSCG Power, 1.8V ±5%
Power supply must be connected regardless if SSCG function is in operation.
VDDIO1/2/3
29, 20, 7
Power, Digital
LVCMOS I/O Buffer Power, The single-ended outputs and control input are powered
from VDDIO. VDDIO can be connected to a 1.8V ±5% or 3.3V ±10%
POWER AND GROUND
VDDD
17
Power, Digital
Digital Core Power, 1.8V ±5%
VDDR
36
Power, Analog
Rx Analog Power, 1.8V ±5%
VDDCML
40
Power, Analog
Bidirectional Channel Driver Power, 1.8V ±5%
VDDPLL
45
Power, Analog
PLL Power, 1.8V ±5%
DAP
Ground, DAP
DAP must be grounded. DAP is the large metal contact at the bottom side, located at
the center of the WQFN package. Connected to the ground plane (GND) with at least
16 vias.
VSS
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
6
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SNLS332E – JUNE 2010 – REVISED APRIL 2013
Absolute Maximum Ratings (1) (2) (3)
−0.3V to +2.5V
Supply Voltage – VDDn (1.8V)
−0.3V to +4.0V
Supply Voltage – VDDIO
−0.3V to + (VDDIO + 0.3V)
LVCMOS Input Voltage I/O Voltage
−0.3V to +(VDD + 0.3V)
CML Driver I/O Voltage (VDD)
−0.3V to (VDD + 0.3V)
CML Receiver I/O Voltage (VDD)
Junction Temperature
+150°C
Storage Temperature
−65°C to +150°C
Maximum Package Power Dissipation Capacity
1/θJA °C/W above +25°
Package Derating
θJA(based on 16 thermal vias)
40 Lead WQFN
48 Lead WQFN
30.7 °C/W
θJC(based on 16 thermal vias)
6.8 °C/W
θJA(based on 16 thermal vias)
26.9 °C/W
θJC(based on 16 thermal vias)
4.4 °C/W
ESD Rating (IEC 61000-4-2)
RD = 330Ω, CS = 150pF
≥±25 kV
Air Discharge (DOUT+, DOUT-, RIN+, RIN-)
≥±10 kV
Contact Discharge (DOUT+, DOUT-, RIN+, RIN-)
ESD Rating (ISO10605)
RD = 330Ω, CS = 150/330pF
ESD Rating (ISO10605)
RD = 2KΩ, CS = 150/330pF
Air Discharge (DOUT+, DOUT-, RIN+, RIN-)
≥±15 kV
Contact Discharge (DOUT+, DOUT-, RIN+, RIN-)
≥±10 kV
≥±8 kV
ESD Rating (HBM)
≥±1 kV
ESD Rating (CDM)
≥±250 V
ESD Rating (MM)
(1)
(2)
(3)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating
Conditions indicate conditions at which the device is functional; the device should not be operated beyond such conditions.
For soldering specifications: see product folder at www.ti.com
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
Recommended Operating Conditions (1)
Min
Nom
Max
Units
Supply Voltage (VDDn)
1.71
1.8
1.89
V
LVCMOS Supply Voltage (VDDIO)
OR
1.71
1.8
1.89
V
3.0
3.3
LVCMOS Supply Voltage (VDDIO)
Supply Noise
3.6
V
VDDn (1.8V)
25
mVp-p
VDDIO (1.8V)
25
mVp-p
VDDIO (3.3V)
50
mVp-p
+105
°C
43
MHz
Operating Free Air Temperature (TA)
-40
PCLK Clock Frequency
10
(1)
+25
Supply noise testing was done with minimum capacitors (as shown on Figure 37 and Figure 38) on the PCB. A sinusoidal signal is AC
coupled to the VDDn (1.8V) supply with amplitude = 25 mVp-p measured at the device VDDn pins. Bit error rate testing of input to the
Ser and output of the Des with 10 meter cable shows no error when the noise frequency on the Ser is less than 1 MHz. The Des on the
other hand shows no error when the noise frequency is less than 750 kHz.
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Electrical Characteristics (1) (2) (3)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
LVCMOS DC SPECIFICATIONS 3.3V I/O (SER INPUTS, DES OUTPUTS, GPI, GPO, CONTROL INPUTS AND OUTPUTS)
VIH
High Level Input
Voltage
VIN = 3.0V to 3.6V
2.0
VIN
V
VIL
Low Level Input
Voltage
VIN = 3.0V to 3.6V
GND
0.8
V
IIN
Input Current
VIN = 0V or 3.6V, VIN = 3.0V to 3.6V
-20
+20
µA
VOH
High Level Output
Voltage
VDDIO = 3.0V to 3.6V, IOH = −4 mA
2.4
VDDIO
V
VOL
Low Level Output
Voltage
VDDIO = 3.0V to 3.6V, IOL = +4 mA
GND
0.4
V
IOS
IOZ
Output Short Circuit
Current
VOUT = 0V
TRI-STATE Output
Current
PDB = 0V,
VOUT = 0V or VDD
±1
Serializer GPO
Outputs
-24
Deserializer LVCMOS
Outputs
-39
LVCMOS Outputs
mA
-20
±1
+20
µA
LVCMOS DC SPECIFICATIONS 1.8V I/O (SER INPUTS, DES OUTPUTS, GPI, GPO, CONTROL INPUTS AND OUTPUTS)
VIH
High Level Input
Voltage
VIN = 1.71V to 1.89V
0.65 VIN
VIN +0.3
VIL
Low Level Input
Voltage
VIN = 1.71V to 1.89V
GND
0.35 VIN
IIN
Input Current
VIN = 0V or 1.89V, VIN = 1.71V to 1.89V
VOH
High Level Output
Voltage
VDDIO = 1.71V to 1.89V, IOH = −4 mA
VOL
Low Level Output
Voltage
VDDIO = 1.71V to 1.89V
IOL = +4 mA
V
IOS
IOZ
Output Short Circuit
Current
VOUT = 0V
TRI-STATE Output
Current
PDB = 0V,
VOUT = 0V or VDD
Deserializer LVCMOS
Outputs
-20
±1
+20
µA
VDDIO 0.45
VDDIO
V
GND
0.45
V
Serializer GPO
Outputs
-11
Deserializer LVCMOS
Outputs
-20
LVCMOS Outputs
mA
-20
±1
+20
µA
268
340
412
mV
1
50
mV
VDD - VOD
VDD (MAX) VOD (MIN)
V
1
50
mV
CML DRIVER DC SPECIFICATIONS (DOUT+, DOUT-)
|VOD|
Output Differential
Voltage
RT = 100Ω (Figure 8)
ΔVOD
Output Differential
Voltage Unbalance
RL = 100Ω
VOS
Output Differential
Offset Voltage
RL = 100Ω (Figure 8)
ΔVOS
Offset Voltage
Unbalance
RL = 100Ω
IOS
Output Short Circuit
Current
DOUT+/- = 0V
RT
Differential Internal
Termination
Resistance
Differential across DOUT+ and DOUT-
VDD (MIN) VOD (MAX)
-27
80
100
mA
120
Ω
CML RECEIVER DC SPECIFICATIONS (RIN+, RIN-)
(1)
(2)
(3)
8
The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground
except VOD, ΔVOD, VTH and VTL which are differential voltages.
Typical values represent most likely parametric norms at 1.8V or 3.3V, TA = +25°C, and at the Recommended Operation Conditions at
the time of product characterization and are not ensured.
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SNLS332E – JUNE 2010 – REVISED APRIL 2013
Electrical Characteristics(1)(2)(3)
(continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Differential Threshold
High Voltage
VTH
Conditions
Min
Typ
Max
Units
+90
(Figure 10)
mV
VTL
Differential Threshold
Low Voltage
VIN
Differential Input
Voltage Range
RIN+ - RIN-
180
IIN
Input Current
VIN = VDD or 0V, VDD = 1.89V
-20
±1
+20
µA
RT
Differential Internal
Termination
Resistance
Differential across RIN+ and RIN-
80
100
120
Ω
62
90
-90
mV
SER/DES SUPPLY CURRENT *DIGITAL, PLL, AND ANALOG VDD
IDDT
RT = 100Ω
Serializer (Tx)
WORST CASE pattern
VDDn Supply Current (Figure 5)
(includes load
RT = 100Ω
current)
RANDOM PRBS-7 pattern
VDDn = 1.89V
PCLK = 43 MHz
Default Registers
IDDIOT
Serializer (Tx)
RT = 100Ω
VDDIO Supply
WORST CASE pattern
Current (includes load
(Figure 5)
current)
IDDTZ
IDDIOTZ
IDDR
Serializer (Tx) Supply PDB = 0V; All other
Current Power-down LVCMOS Inputs = 0V
VDDn = 1.89V, CL = 8 pF
Deserializer (Rx)
WORST CASE Pattern
VDDn Supply Current (Figure 5)
(includes load
VDDn = 1.89V, CL = 8 pF
current)
RANDOM PRBS-7 Pattern
IDDIOR
IDDRZ
IDDIORZ
VDDIO = 1.89V, CL = 8 pF
Deserializer (Rx)
WORST CASE Pattern
VDDIO Supply
(Figure 5)
Current (includes load
VDDIO = 3.6V, CL = 8 pF
current)
WORST CASE Pattern
Deserializer (Rx)
Supply Current
Power-down
PDB = 0V; All other
LVCMOS Inputs = 0V
mA
55
VDDIO = 1.89V
PCLK = 43 MHz
Default Registers
2
VDDIO = 3.6V
PCLK = 43 MHz
Default Registers
7
15
VDDn = 1.89V
370
775
VDDIO = 1.89V
55
125
VDDIO = 3.6V
65
135
PCLK = 43 MHz
SSCG[3:0] = ON
Default Registers
60
96
PCLK = 43 MHz
Default Registers
53
PCLK = 43 MHz
Default Registers
21
32
PCLK = 43 MHz
Default Registers
49
83
VDDn = 1.89V
42
400
VDDIO = 1.89V
8
40
VDDIO = 3.6V
350
800
5
mA
µA
mA
µA
Recommended Serializer Timing for PCLK (1)
Over recommended operating supply and temperature ranges unless otherwise specified.
Min
Typ
Max
Units
tTCP
Symbol
Transmit Clock Period
23.3
T
100
ns
tTCIH
Transmit Clock Input High
Time
0.4T
0.5T
0.6T
ns
tTCIL
Transmit Clock Input Low
Time
0.4T
0.5T
0.6T
ns
tCLKT
PCLK Input Transition Time
(Figure 11)
3
ns
fOSC
Internal oscillator clock
source
(1)
Parameter
Conditions
10 MHz – 43 MHz
0.5
25
MHz
Recommended Input Timing Requirements are input specifications and not tested in production.
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Product Folder Links: DS90UB903Q DS90UB904Q
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Serializer Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
tLHT
CML Low-to-High Transition
Time
RL = 100Ω (Figure 6)
150
330
ps
tHLT
CML High-to-Low Transition
Time
RL = 100Ω (Figure 6)
150
330
ps
tDIS
Data Input Setup to PCLK
tDIH
Data Input Hold from PCLK
tPLD
Serializer PLL Lock Time
RL = 100Ω (1) (2)
Serializer Delay
RT = 100Ω, PCLK = 10–43 MHz
Register 0x03h b[0] (TRFB = 1)
(Figure 14)
Serializer Output
Deterministic Jitter
Serializer output intrinsic deterministic
jitter . Measured (cycle-cycle) with
PRBS-7 test pattern
PCLK = 43 MHz (3) (4)
0.13
UI
Serializer Output Random
Jitter
Serializer output intrinsic random jitter
(cycle-cycle). Alternating-1,0 pattern.
PCLK = 43 MHz (3) (4)
0.04
UI
Peak-to-peak Serializer
Output Jitter
Serializer output peak-to-peak jitter
includes deterministic jitter, random
jitter, and jitter transfer from serializer
input. Measured (cycle-cycle) with
PRBS-7 test pattern.
PCLK = 43 MHz (3) (4)
0.396
UI
λSTXBW
Serializer Jitter Transfer
Function -3 dB Bandwidth
PCLK = 43 MHz, Default Registers
(Figure 20) (3)
1.90
MHz
δSTX
Serializer Jitter Transfer
Function (Peaking)
PCLK = 43 MHz, Default Registers
(Figure 20) (3)
0.944
dB
δSTXf
Serializer Jitter Transfer
Function (Peaking
Frequency)
PCLK = 43 MHz, Default Registers
(Figure 20) (3)
500
kHz
tSD
tJIND
tJINR
tJINT
(1)
(2)
(3)
(4)
Serializer Data Inputs (Figure 12)
2.0
ns
2.0
ns
6.386T
+5
1
2
ms
6.386T
+ 12
6.386T
+ 19.7
ns
tPLD and tDDLT is the time required by the serializer and deserializer to obtain lock when exiting power-down state with an active PCLK
Specification is ensured by design.
Typical values represent most likely parametric norms at 1.8V or 3.3V, TA = +25°C, and at the Recommended Operation Conditions at
the time of product characterization and are not ensured.
UI – Unit Interval is equivalent to one ideal serialized data bit width. The UI scales with PCLK frequency.
Deserializer Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified.
Min
Typ
Max
Units
tRCP
Symbol
Receiver Output Clock Period
tRCP = tTCP
PCLK
23.3
T
100
ns
tPDC
PCLK Duty Cycle
Default Registers
SSCG[3:0] = OFF
PCLK
45
50
55
%
tCLH
LVCMOS Low-to-High Transition
Time
1.3
2.0
2.8
1.3
2.0
2.8
1.6
2.4
3.3
1.6
2.4
3.3
0.38T
0.5T
0.38T
0.5T
tCHL
Parameter
Conditions
LVCMOS High-to-Low Transition
Time
LVCMOS Low-to-High Transition
Time
tCLH
tCHL
LVCMOS High-to-Low Transition
Time
tROS
ROUT Setup Data to PCLK
tROH
(1)
10
ROUT Hold Data to PCLK
Pin/Freq.
VDDIO: 1.71V to 1.89V or
3.0 to 3.6V,
CL = 8 pF (lumped load)
Default Registers
(Figure 16) (1)
PCLK
VDDIO: 1.71V to 1.89V or
3.0 to 3.6V,
CL = 8 pF (lumped load)
Default Registers
(Figure 16) (1)
Deserializer ROUTn
Data Outputs
VDDIO: 1.71V to 1.89V or
3.0V to 3.6V,
CL = 8 pF (lumped load)
Default Registers
Deserializer ROUTn
Data Outputs
ns
ns
ns
Specification is ensured by characterization and is not tested in production.
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Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: DS90UB903Q DS90UB904Q
DS90UB903Q, DS90UB904Q
www.ti.com
SNLS332E – JUNE 2010 – REVISED APRIL 2013
Deserializer Switching Characteristics (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Pin/Freq.
Min
Typ
Max
Units
4.571T
+8
4.571T
+ 12
4.571T
+ 16
ns
10
ms
tDD
Deserializer Delay
Default Registers
Register 0x03h b[0]
(RRFB = 1) (Figure 17)
10 MHz–43 MHz
tDDLT
Deserializer Data Lock Time
(Figure 15) (2)
10 MHz–43 MHz
tRJIT
Receiver Input Jitter Tolerance
(Figure 19,
Figure 21) (3) (4)
43 MHz
0.53
Receiver Clock Jitter
PCLK
SSCG[3:0] = OFF (1) (5)
10 MHz
300
550
43 MHz
120
250
Deserializer Period Jitter
PCLK
SSCG[3:0] = OFF (1) (6)
10 MHz
425
600
43 MHz
320
480
Deserializer Cycle-to-Cycle Clock
Jitter
PCLK
SSCG[3:0] = OFF (1) (7)
10 MHz
320
500
43 MHz
300
500
LVCMOS Output Bus
SSC[3:0] = ON
(Figure 22)
20 MHz–43 MHz
±0.5% to
±2.0%
%
20 MHz–43 MHz
9 kHz to
66 kHz
kHz
tRCJ
tDPJ
tDCCJ
fdev
Spread Spectrum Clocking
Deviation Frequency
fmod
Spread Spectrum Clocking
Modulation Frequency
(2)
(3)
(4)
(5)
(6)
(7)
UI
ps
ps
ps
tPLD and tDDLT is the time required by the serializer and deserializer to obtain lock when exiting power-down state with an active PCLK
UI – Unit Interval is equivalent to one ideal serialized data bit width. The UI scales with PCLK frequency.
tRJIT max (0.61UI) is limited by instrumentation and actual tRJIT of in-band jitter at low frequency (0
tLOW
SCL Low Period
4.7
µs
tHIGH
SCL High Period
4.0
µs
tHD:STA
Hold time for a start or a repeated start
condition
4.0
µs
tSU:STA
Set Up time for a start or a repeated
start condition
4.7
µs
tHD:DAT
Data Hold Time
tSU:DAT
Data Set Up Time
250
ns
tSU:STO
Set Up Time for STOP Condition
4.0
µs
tr
SCL & SDA Rise Time
1000
tf
SCL & SDA Fall Time
300
ns
Cb
Capacitive load for bus
400
pF
fSCL = 100 kHz
0
3.45
µs
ns
SWITCHING CHARACTERISTICS (2)
fSCL
SCL Clock Frequency
tLOW
Serializer MODE = 0 – R/W
Register 0x05 = 0x40'h
100
Deserializer MODE = 0 – READ
Register 0x06 b[6:4] = 0x00'h
100
kHz
Serializer MODE = 0 – R/W
Register 0x05 = 0x40'h
SCL Low Period
Deserializer MODE = 0 – READ
Register 0x06 b[6:4] = 0x00'h
Serializer MODE = 0 – R/W
Register 0x05 = 0x40'h
4.7
µs
4.0
µs
tHIGH
SCL High Period
tHD:STA
Hold time for a start or a repeated start
condition
Serializer MODE = 0
Register 0x05 = 0x40'h
4.0
µs
tSU:STA
Set Up time for a start or a repeated
start condition
Serializer MODE = 0
Register 0x05 = 0x40'h
4.7
µs
tHD:DAT
Data Hold Time
tSU:DAT
Data Set Up Time
tSU:STO
Set Up Time for STOP Condition
tf
SCL & SDA Fall Time
tBUF
Bus free time between a stop and start
condition
tTIMEOUT
NACK Time out
(1)
(2)
12
Deserializer MODE = 0 – READ
Register 0x06 b[6:4] = 0x00'h
0
Serializer MODE = 0
3.45
250
ns
4.0
µs
300
Serializer MODE = 0
µs
4.7
ns
µs
Serializer MODE = 1
1
Deserializer MODE = 1
Register 0x06 b[2:0]=111'b
25
ms
Recommended Input Timing Requirements are input specifications and not tested in production.
Specification is ensured by design.
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Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: DS90UB903Q DS90UB904Q
DS90UB903Q, DS90UB904Q
www.ti.com
SNLS332E – JUNE 2010 – REVISED APRIL 2013
SDA
tf
tHD;STA
tLOW
tBUF
tr
tf
tr
SCL
tSU;STA
tHD;STA
tHIGH
tSU;STO
tSU;DAT
tHD;DAT
START
STOP
REPEATED
START
START
Figure 4. Bidirectional Control Bus Timing
Bidirectional Control Bus DC Characteristics (SCL, SDA) - I2C Compliant
Over recommended supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Max
Units
SDA and SCL
0.7 x
VDDIO
VDDIO
V
Input Low Level Voltage
SDA and SCL
GND
0.3 x
VDDIO
V
VHY
Input Hysteresis
SDA and SCL
IOZ
TRI-STATE Output Current
PDB = 0V, VOUT = 0V or VDD
-20
±1
+20
µA
IIN
Input Current
SDA or SCL, Vin = VDDIO or GND
-20
±1
+20
µA
CIN
Input Pin Capacitance
VIH
Input High Level
VIL
Conditions
Min
Typ
>50
mV