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參數(shù)資料
型號: PCA9507DP,118
廠商: NXP Semiconductors
文件頁數(shù): 18/20頁
文件大小: 0K
描述: IC I/O EXPANDER I2C 24B 8TSSOP
產(chǎn)品培訓(xùn)模塊: I²C Bus Fundamentals
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 2 輸入,2 輸出
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-TSSOP
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 568-5924-6
PCA9507_1
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 7 February 2008
7 of 20
NXP Semiconductors
PCA9507
2-wire serial bus extender for HDMI DDC I2C-bus and SMBus
7.
Application design-in information
A typical application is shown in Figure 6. In this example, the system master is running
on a 3.3 V I2C-bus while the slave is connected to a 5 V bus. Both buses run at 400 kHz.
Master devices can be placed on either bus. HDMI DDC applications for DVD/R and
LCD TV are shown in Figure 7 and Figure 8, respectively. In these applications the HDMI
transmitter or receiver is 3.3 V, while the DDC line is 5 V, PCA9507 behaves like a voltage
level shift, a buffer and long cable bus extender to ensure signal integrity for accessing the
EDID on the DDC line.
Fig 6.
Typical application
002aad403
VCC(A)
VCC(B)
PCA9507
SDAB
SDAA
SCLB
SCLA
EN
10 k
10 k
SDA
SCL
BUS
MASTER
400 kHz
SLAVE
400 kHz
SDA
SCL
bus B
bus A
5 V
3.3 V
10 k
10 k
Fig 7.
Source or DVD/R, STB application
002aad404
VCC(A)
VCC(B)
SDAB
SDAA
SCLB
SCLA
1.5 k
to
2.0 k
10 k
(optional)
GND
10 k
EN
3.3 V
0.1
F
10 k
HDMI
TRANSMITTER
PCA9507
0.1
F
1.5 k
to
2.0 k
5 V
HDMI cable
DDC line
LCD TV (sink)
PCA9507
PCA9512A
PCA9517
PCA9515
DVD/R or STB
22
22
Fig 8.
Sink or LCD TV application
002aad405
VCC(A)
VCC(B)
SDAB
SDAA
SCLB
SCLA
10 k
(optional)
GND
10 k
EN
3.3 V
0.1
F
10 k
HDMI
RECEIVER
PCA9507
0.1
F
47 k
5 V
HDMI cable
DDC line
DVD (source)
PCA9507
PCA9512A
PCA9517
PCA9515
LCD TV
22
22
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