參數(shù)資料
型號(hào): MAX1496EAI+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 5/24頁(yè)
文件大?。?/td> 0K
描述: IC ADC 3.5DIGIT LED DRVR 28-SSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,000
位數(shù): 3.5 位
采樣率(每秒): 5
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個(gè)差分,雙極
MAX1447/MAX1496/MAX1498
3.5- and 4.5-Digit, Single-Chip ADCs
with LED Drivers
______________________________________________________________________________________
13
Figure 5 shows a typical common-cathode configura-
tion for two digits. In common-cathode configuration,
the cathodes of all LEDs in a digit are connected
together. Each segment driver of the MAX1447/
MAX1496/MAX1498 connects to its corresponding
LED’s anodes. For example, segment driver SEGA con-
nects to all LED segments designated as A. Similar
configurations are used for other segment drivers.
The MAX1447/MAX1496/MAX1498 use a multiplexing
scheme to drive one digit at a time. The scan rate is fast
enough to make the digits appear to be lit. Figures 6 and
7 show data-timing diagrams for the MAX1447/
MAX1496/MAX1498, where T is the display scan period
(typically around 1/512Hz or 1.9531ms for the
MAX1447/MAX1498, and 1/640Hz or 1.5625ms for the
MAX1496). TON in Figures 6 and 7 denotes the amount
of time each digit is on and is calculated as follows:
T
Tms
s MAX
MAX
T
Tms
s MAX
ON
==
=
==
=
5
1 95312
5
390 60
1447
1498
4
1 5625
4
390 60
1496
.
.(
/
)
.
.(
)
A
DIGIT 1
DIGIT 2
SEGDP
SEGG
SEGF
SEGE
SEGD
SEGC
SEGB
SEGA
DD
EE
GG
FF
BB
CC
DP
B
C
D
E
F
G
DP
A
B
C
D
E
F
G
DP
Figure 5. Two-Digit Common-Cathode Configuration
1
43210432
0
4
T
TON
DIGIT 4 (MSD)
DIGIT 3
DIGIT 2
DIGIT 1
DIGIT 0 (LSD)
DATA
MSD
LSD
Figure 6. LED Voltage Waveform—MAX1447/MAX1498
3
32103210
2
1
T
TON
DIGIT 3 (MSD)
DIGIT 2
DIGIT 1
DIGIT 0 (LSD)
DATA
MSD
LSD
Figure 7. LED Voltage Waveform—MAX1496
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