COMPANY CONFIDENTIAL
PI3HDMI412-A
4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant
Signal Switch based on TMDS Signaling Standard
Description
Features
Pericom Semiconductor’s PI3HDMI series of switch circuits are
targeted for high-resolution video networks that are based on DVI/
HDMIstandards,andTMDSsignalprocessing.ThePI3HDMI412-A
is a 8- to 4-Channel Mux/DeMux Switch. The device multiplexes
differentialsignalstooneoftwocorrespondingoutputs.Theswitch
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.
• 4-Differential Channel 2:1 Mux/DeMux
• TMDS Signaling
• Data Rate: 1.65Gbps
• Crosstalk: -25dB@825MHz
• Switching speed: 4ns
• Isolation: -30dB@825MHz
• ESD: Data bits @ 8kV HBM, select bit @ 2 kV HBM
• Near-Zero Prop Delay: 250ps max.
• Low bit-to-bit skew
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.
• Hot insertion capable
• Enable/Disable Time: 9ns
• Bidirectional
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.
• Packaging (Pb-free & Green):
- 42-pin TQFN (ZH)
- 48-pin BQSOP (B)
Pin Descriptions (Top View)
Block Diagram
ꢂ ꢅꢉ
ꢈ
ꢂ ꢅ
ꢈ
VDD
VSS
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
VSS
VDD
VSS
VSS
ꢂ ꢄ
ꢈ
ꢂ ꢄꢉ
ꢈ
ꢂꢀ ꢂ� ꢂꢈ ꢁꢇ
+A
-A
+A
-A
ꢊꢋ
ꢌꢋ
C0
C0
C1
C1
ꢂ ꢅ
ꢇ
ꢂ ꢅꢉ
ꢇ
ꢉꢈ
ꢉꢈ
ꢉ�
ꢉ�
ꢉꢈ
ꢉꢈ
ꢉ�
ꢉ�
ꢁꢆ
ꢁꢅ
ꢁꢄ
ꢁꢃ
ꢁꢂ
ꢁꢁ
ꢁꢀ
ꢁ�
ꢁꢈ
ꢀꢇ
ꢀꢆ
ꢀꢅ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
�
ꢎ
ꢐꢐ
ꢊ
ꢂ ꢄꢉ
ꢇ
ꢂ ꢄ
ꢇ
ꢀ
ꢉꢈ
ꢉꢈ
ꢎ
ꢊꢋ
ꢌꢋ
+
ꢌ
C0
ꢂ ꢅꢊ
ꢈ
ꢁ
-
C0
ꢂ
ꢂ ꢄꢊ
ꢈ
ꢐꢐ
VSS
ꢊꢍ
ꢌꢍ
VSS
VDD
ꢃ
ꢎ
ꢂ ꢅꢊ
ꢇ
ꢏꢏ
+B
-B
+B
-B
C0
C0
C1
C1
ꢊ
ꢄ
ꢉ�
ꢂ ꢄꢊ
ꢇ
+
9
ꢊꢍ
ꢌꢍ
C1
ꢌ
ꢅ
ꢉ�
ꢂ ꢅꢉ
ꢆ
-
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C1
ꢂ ꢅ
ꢆ
ꢆ
ꢎ
ꢏꢏ
ꢂ ꢄꢉ
ꢆ
VSS
VDD
SEL
VSS
ꢎꢏꢏ
ꢊꢋ
ꢂ ꢄ
ꢆ
ꢇ
ꢎ
ꢐꢑꢒ
ꢐꢐ
VSS
VDD
ꢂ ꢅ
ꢃ
ꢂ ꢅꢉ
ꢃ
ꢉꢀ
ꢉꢀ
ꢉꢁ
ꢉꢁ
ꢉꢀ
ꢉꢀ
ꢉꢁ
ꢉꢁ
�ꢈ
��
�ꢀ
�ꢁ
�ꢂ
�ꢃ
�ꢄ
�ꢅ
ꢎ
ꢐꢐ
ꢌꢋ
ꢊ
ꢂ ꢄꢉ
ꢃ
ꢉꢀ
ꢂ ꢄ
ꢃ
+A
-A
+A
-A
C2
C2
C3
C3
ꢊꢋ
ꢌꢋ
ꢌ
ꢉꢀ
+
C2
ꢂ ꢅꢊ
ꢆ
ꢎ
ꢏꢏ
-
C2
ꢊꢍ
ꢌꢍ
ꢎ
ꢐꢐ
ꢂ ꢄꢊ
ꢆ
VDD
VSS
ꢊ
ꢉꢁ
VSS
ꢂ ꢅꢊ
ꢃ
ꢊꢍ
ꢌꢍ
ꢌ
+B
-B
+B
-B
ꢉꢁ
+
C2
C2
C3
C3
C3
ꢂ ꢄꢊ
ꢃ
ꢎ
ꢐꢐ
-
C3
�ꢆ �ꢇ ꢀꢈ ꢀ�
VSS
VSS
VDD
VSS
�ꢀꢁ
VSS
VDD
48-pin BQSOP
42-pin TQFN
PS8814
02/08/06
1