参数资料
型号: MAX9485ETP+T
厂商: Maxim Integrated Products
文件页数: 11/16页
文件大小: 0K
描述: IC CLOCK GENERATOR AUD 20-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 时钟发生器
PLL:
输入: LVCMOS,LVTTL,晶体
输出: LVCMOS,LVTTL
电路数: 1
比率 - 输入:输出: 1:3
差分 - 输入:输出: 无/无
频率 - 最大: 73.728MHz
除法器/乘法器: 是/无
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(4x4)
包装: 带卷 (TR)
MAX9485
Programmable Audio Clock Generator
4
_______________________________________________________________________________________
Note 1: All parameters tested at TA = +25°C. Specifications over temperature are guaranteed by design and characterization.
Note 2: When X1 is used as an external reference.
Note 3: Guaranteed by design and characterization; limits are set at ±6 sigma.
Note 4: Includes crystal accuracy.
Note 5: FXTL = 27MHz. Nominal frequency.
Note 6: See frequency selection paragraph in the Applications Information section.
Note 7: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) in order to
bridge the undefined region of SCL’s falling edge.
Note 8: Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 VDD and 0.7 VDD.
Note 9: Bus sink current is less than 6mA. Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 VDD and
0.7 VDD.
Note 10: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
I2C TIMING CHARACTERISTICS
(VDD = VDD_P = 3.0V to 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C, VDD = VDD_P = 3.3V;
Figure 7.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Serial Clock
fSCL
400
kHz
Bus Free Time Between a STOP and
a START Condition
tBUF
1.3
s
Hold Time (Repeated) START
Condition
tHD, STA
0.6
s
Repeated START Condition Setup
Time
tSU, STA
0.6
s
STOP Condition Setup Time
tSU, STO
0.6
s
Data Hold Time
tHD,DAT
(Note 7)
0.05
0.9
s
Data Setup Time
tSU,DAT
100
ns
SCL Clock Low Period
tLOW
1.3
s
SCL Clock High Period
tHIGH
0.6
s
Rise Time of SDA and SCL, Receiving
tR
(Notes 3, 8)
20 + 0.1Cb
300
ns
Fall Time of SDA and SCL, Receiving
tF
(Notes 3, 8)
20 + 0.1Cb
300
ns
Fall Time of SDA, Transmitting
tF
(Notes 8, 9)
20 + 0.1Cb
250
ns
Pulse Width of Spike Suppressed
tSP
(Notes 3, 10)
0
50
ns
Capacitive Load for Each Bus Line
Cb
400
pF
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