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PI3HDMI412FT
4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out
Features
* * * * * * * * * * * * * 4-Differential Channel 2:1 Mux/DeMux TMDS Signaling Data Rate: 1.65Gbps Crosstalk: -36dB@1.65Gbps Switching speed: 4ns Isolation: -35dB@1.65Gbps ESD: Data bits @ 8kV HBM, select bit @ 2kV HBM Near-Zero Prop Delay: 250ps max. Low bit-to-bit skew Hot insertion capable Enable/Disable Time: 9ns Bidirectional Packaging (Pb-free & Green): - 42-pin TQFN (ZH) - 48-pin BQSOP (B)
Description
Pericom Semiconductor's PI3HDMI series of switch circuits are targeted for high-resolution video networks that are based on DVI/HDMI standards, and TMDS signal processing. The PI3HDMI412FT is an 8- to 4-Channel Mux/DeMux Switch. The device multiplexes differential signals to one of two corresponding outputs. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew and high channel-to-channel noise isolation. The maximum DVI/HDMI data rate of 1.65Gbps provides the resolution required by the next generation HDTV and PC graphics. Three differential channels are used for data (video signals for DVI or audio/video signals for HDMI), and one differential channel is used for Clock for decoding the TMDS signals at the outputs. Because of its passive bidirectional feature, this switch can be used either at the video drivers side or at the receiver side. For PC graphics applications, the device sits at the drivers side to switch between multiple display units such as PC LCD monitor, projector, TV, etc. For consumer video applications, the device sits at the receiver end to switch between the source components such as DVD, D-VHS, STB, etc.
Block Diagram

Pin Description
42-pin TQFN

48-pin BQSOP

VSS VDD VSS VDD VSS D0+ D0VSS D1+ D1VSS VDD SEL VSS D2+ D2VSS D3+ D3VSS VDD VSS VDD VSS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
VDD VSS D0+A D0-A D1+A D1-A VSS D2+A D2-A D3+A D3-A VSS VDD D0+B D0-B D1+B D1-B VSS D2+B D2-B D3+B D3-B VSS VDD
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Pin Description
Pin # (BQSOP)
2, 4, 12, 21, 23, 25, 36, 48 1, 3, 5, 8, 11, 14, 17, 20, 22, 24, 26, 31, 37, 42, 47 13 6, 7, 9, 10, 15, 16, 18, 19, 27-30, 32-35, 38-41, 43-46
Pin # (TQFN)
2, 8, 16, 18, 20, 30, 40, 42 1, 5, 10, 13, 17, 19, 21, 39, 41 9 3, 4, 6, 7, 11, 12, 14, 15, 22-29, 31-38,
Pin Name VDD VSS SEL Dx+/-x + CLK+/-x
Description + Power supply 3.30 - Power supply Select pin, see truth table Data + Clk bits for TMDS signal
Truth Table
Function N to N to NA NB SEL L H
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature...........................................................-65C to +150C Supply Voltage to VSS Potential............................................-0.5V to +2.5V DC Input Voltage ........................................................................VSS to VDD DC Output Current.............................................................................120mA
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Power Supply Characteristics
Paramenter VDD VSS Description Positive Power Supply Negative Power Supply Min. 3.0 1.5 Max. 3.6 1.6 Units V V
DC Electrical Characteristics for Switching over Operating Range (TA = -40C to +85C)
Paramenter VIH3 VIL3 VIK IIH IIL Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Test Conditions (1) Guaranteed HIGH level Guaranteed LOW level VDD=Max., VIN=VDD VDD=Max., VIN=VSS Min. 0.65(VDD-VSS)+VSS -0.5+VSS -0.7+VSS 0.35(VDD-VSS)+VSS -1.2+VSS 5 5 A V Typ.(2) Max. Units
Clamp Diode Voltage VDD=Max., IIN=-18mA
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at TA = 25C ambient and maximum loading. 3. VIH & VIL are for SEL input only. 2
PS8798 12/05/05
PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Power Supply Characteristics
Parameters ICC Description Quiescent Power Supply Current
Test Conditions(1) VDD = Max., VIN = VDD or VSS
Min.
Typ.(2) 200
Max.
Units A
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at TA = 25C ambient and maximum loading.
Dynamic Electrical Characteristics Over the Operating Range (TA= -40 to +85C)
Parameter XTALK Description Crosstalk Test Conditions See Fig. 1 for Measurement Setup, @ 1.65 Gbps See Fig. 2 for Measurement Setup, @ 1.65 Gbps Min. Typ. -36 dB -35 Max. Units
OIRR
OFF Isolation

Fig 1. Crosstalk Setup
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out

Fig 2. Off-isolation setup
Fig 3. Crosstalk
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out
Fig 4. Off Isolation
Switching Characteristics (TA= -40 to +85C, VSS=0V, VDD=1.8V 10%)
Paramenter tPZH, tPZL tPHZ, tPLZ Description Line Enable Time - SEL to AN, BN
(1) (1)
Min. 0.5 0.5
Max. 8.0 4.0
Units
Line Disable Time - SEL to AN, BN
Notes: 1. For measurement setup, please see "Test Circuit For Electrical Characteristic" on page 6, and "Switching waveforms" on page 7
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PS8798
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Test Circuit for Electrical Characteristics

Notes: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator 3. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 4. All input impulses are supplied by generators having the following characteristics: PRR MHz, ZO = 50, tR 2.5ns, tF 2.5ns. 5. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test tPLZ, tPZL (output on B-side) tPHZ, tPZH (output on B-side) Prop Delay Switch 2 x (VDD - VSS) VSS Open
Test Circuit for Dynamic Electrical Characteristics

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PS8798
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Switching Waveforms

Voltage Waveforms Enable and Disable Times
3.3V PI3HDMI412FT 1.8k-ohm 3.3V Select Line
1.5k-ohm Select Line
1.5V
Example of a circuit that also needs to be connected to the select lines of our device:
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Packaging Mechanical: 42-pin TQFN (ZH)
Pin #1 Corner
3.500.10
0.800.04
2.05.05
Pin #1 Corner
9.00.10
0.20 REF.
0.5
0.40.05
0.6.03
0.25.05
Packaging Mechanical: 48-pin BQSOP (B)
48
.150 .157 3.80 4.00
.228 .244 5.80 6.20
Gauge Plane
1
.010 0.25 BSC
.386 .394 9.80 10.00
.015 0.381 x 45
.014 0.356 REF
.008 0.20 Nom
Nom .063 1.60
7.55.05
.020 .029 0.50 0.75
.079 2.0 Max .002 0.05 .009 0.25
.0157 BSC 0.40
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
.0051 .009 0.13 0.23
5
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PI3HDMI412FT 4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch with Flow-through Pin Out Ordering Information
Ordering Code PI3HDMI412FTZHE PI3HDMI412FTBE Package Code ZH B Package Description Pb-free & Green, 42-pin TQFN Pb-free & Green, 48-pin BQSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS8798 12/05/05

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