參數(shù)資料
型號(hào): 73M1822-IMR/F
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 5/82頁(yè)
文件大?。?/td> 0K
描述: MICRODAA VOICE DATA/FAX 42-QFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
系列: MicroDAA™
應(yīng)用: 傳真,調(diào)制解調(diào)器,尋呼機(jī)
接口: 串行
電源電壓: *
封裝/外殼: 42-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 42-QFN(8x8)
包裝: 帶卷 (TR)
安裝類型: 表面貼裝
DS_1x22_001
73M1822/73M1922 Data Sheet
Rev. 1.6
13
2.4
73M1912 32-Pin QFN Pinout
Figure 5 shows the 73M1912 32-pin QFN pinout.
6
7
8
9
5
4
3
2
1
17
18
19
20
24
23
22
21
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
CKO
OFH
CKI
VND/VNX
SCP
MID
SCM
VPX
RST
DCD
TST
TXM
SACIN
RXM
RXP
VPS
RCT
BYP
SRE
SRB
VNS
VBG
ACS
VNS
73M1912
DCS
GPO
GPI
VNS
RGP
RGN
DCI
DCG
Figure 5: 73M1912 32-Pin QFN Pinout
Table 4 describes the pin functions for the device. Decoupling capacitors on the power supplies should be
included for each pair of supply pins.
Table 4: 73M1912 32-Pin QFN Pin Definitions
Pin
Number
Pin
Name
Type
Description
1
CKO
O
Test point for recovered clock
2
OFH
O
Off-hook control
3
CKI
I
Test input for clock
4
VND/VNX
GND
Digital/analog negative supply voltage
5
SCP
I/O
Positive side of the secondary pulse transformer winding
6
MID
I/O
Charge pump midpoint
7
SCM
I/O
Negative side of the secondary pulse transformer winding
8
VPX
PWR
Supply from the barrier side, connect to VPD
9
RCT
I
External rectification – disables internal rectifier when low, leave
open
10
BYP
I
Factory test mode – leave open
11
SRE
I
Voltage regulator sense
12
SRB
O
Voltage regulator drive
13
VNS
GND
Analog/digital negative supply voltage
14
VBG
O
VBG bypass, connect to 0.1μF capacitor to VPS
15
ACS
I
AC current sense
16
VNS
GND
Analog/digital negative supply voltage
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