MAX2077CTN 查看數據表（PDF） - Maxim Integrated
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MAX2077CTN Datasheet PDF : 19 Pages
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Octal-Channel Ultrasound Front-End
Pin Description (continued)
PIN
56 TQFN 68 TQFN
27
34
28
35
29
36
30
37
31
38
32
39
33
40
34
41
36
45
37
46
38
47
39
48
40
49
41
50
42
51
43
52
44
54
45
55
46
56
47
—
48
57
50
9, 28, 31
52
65
53
66
54
67
55
68
56
1
29, 30,
—
33, 42,
43, 53,
58–62
—
—
NAME
FUNCTION
OUT8-
OUT8+
OUT7-
OUT7+
OUT6-
OUT6+
OUT5-
OUT5+
OUT4-
OUT4+
OUT3-
OUT3+
OUT2-
OUT2+
OUT1-
OUT1+
CLK
DIN
CS
PD
NP
GND
ZF1
IN1
INC1
ZF2
IN2
Channel 8 Negative Differential Output
Channel 8 Positive Differential Output
Channel 7 Negative Differential Output
Channel 7 Positive Differential Output
Channel 6 Negative Differential Output
Channel 6 Positive Differential Output
Channel 5 Negative Differential Output
Channel 5 Positive Differential Output
Channel 4 Negative Differential Output
Channel 4 Positive Differential Output
Channel 3 Negative Differential Output
Channel 3 Positive Differential Output
Channel 2 Negative Differential Output
Channel 2 Positive Differential Output
Channel 1 Negative Differential Output
Channel 1 Positive Differential Output
Serial Port Data Clock (Positive Edge Triggered). 3.3V CMOS. Clock input for programming
the serial shift registers.
Serial Port Data Input Line. 3.3V CMOS. Data input to program the serial shift registers.
Active-Low Serial Port Chip Select. 3.3V CMOS. Used to store programming bits in registers,
as well as in CW mode, synchronizing all channel phases (on a rising edge).
Power-Down Mode Select Input (56-Pin TQFN Only). Drive PD high to place the entire device
in power-down mode. Drive PD low for normal operation. This mode overrides the standby
mode.
VGA Standby Mode Select Input. Set NP to 1 to place the entire device in standby mode.
Overrides soft channel shutdown in serial shift register, but not general power-down (PD).
Ground
Channel 1 Active Impedance Matching Line. AC-couple to source with a 10nF capacitor.
Channel 1 Positive Differential Input
Channel 1 Clamp Input. Connect to a coupling capacitor.
Channel 2 Active Impedance Matching Line. AC-couple to source with a 10nF capacitor.
Channel 2 Positive Differential Input
N.C. No Connection. Internally not connected.
Exposed pad. Internally connected to ground. Connect to a large ground plane using
EP
multiple vias to maximize thermal and electrical performance. Not intended as an electrical
connection point.
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