參數(shù)資料
型號(hào)： MAX9598CTL+T
廠商： Maxim Integrated Products
文件頁數(shù)： 13/36頁
文件大小： 0K
描述： IC SWITCH DUAL SCART 40TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
功能： 開關(guān)
電路： 2 x SCART
導(dǎo)通狀態(tài)電阻： 7 歐姆
電壓電源： 單/雙電源
電壓 - 電源，單路/雙路(±)： 3 V ~ 3.6 V，±11.4 V ~ 12.6 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 40-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 40-TQFN-EP（6x6）
包裝： 帶卷 (TR)
MAX9598
Interrupt Output
When interrupt is enabled in modes 1 and 2 (see the
Operating Modes section), INT, which is an open-drain
output, pulls low under the following conditions: slow-
switch signals change value, CVBS input signals are
detected or disappear, and CVBS output loads are
added or removed.
When interrupt is enabled in mode 3, INT pulls low only
when the slow-switch signal changes value.
Enable INT by writing a 1 into bit 4 of register 01h. See
Table 11.
The interrupt can be cleared by reading register 0Eh
and 0Fh.
Applications Information
Audio Inputs
The maximum full-scale audio signal that can be
applied to the audio inputs is 0.5VRMS biased at
ground. The recommended application circuit to atten-
uate and bias an incoming audio signal is shown in
Figure 13.
The audio path has a gain of 4V/V so that the full scale
of the audio output signal is 2VRMS. If less than 2VRMS
full scale is desired at the audio outputs, then the full
scale of the audio input signal should be proportionate-
ly decreased below 0.5VRMS.
Operating Modes
The MAX9598 has four operating modes, which can be
set by writing to bits 6 and 7 of register 10h. See Table 17.
Low-Power Audio/Video Switch for
Dual SCART Connectors
20
______________________________________________________________________________________
ACKNOWLEDGE FROM MAX9598
1 BYTE
AUTOINCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9598
NOT ACKNOWLEDGE FROM MASTER
A
P
A
0
ACKNOWLEDGE FROM MAX9598
R/W
SA
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 11. Reading 1 Indexed Byte of Data from the MAX9598
ACKNOWLEDGE FROM MAX9598
1 BYTE
AUTOINCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9598
A
AP
0
ACKNOWLEDGE FROM MAX9598
R/W
SA
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 12. Reading n Bytes of Indexed Data from the MAX9598
MAX9598
1
μF
6.65k
Ω
*R1 VALUES
DAC = CS4334/5/8/9: R1 = 4.53k
Ω ±1%
DAC = PCM1742: R1 = 5.57k
Ω ±1%
R1*
ENC_INL
1
μF
6.65k
Ω
R1*
ENC_INR
STEREO
AUDIO
DACS
Figure 13. Application Circuit to Connect Audio Source to Audio
Inputs (1F Capacitor Connected to the Ground-Referenced
Resistors Biases the Audio Signal at Ground, Resistors
Attenuate the Audio Signal)
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