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參數(shù)資料
| 型號(hào)： | TLS21H62-3PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Read/Write Preamplifier(5V,2通道低噪讀寫(xiě)前置運(yùn)放) |
| 中文描述： | 讀/寫(xiě)前置放大器（5V的，2通道低噪讀寫(xiě)前置運(yùn)放） |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 200K |
| 代理商： | TLS21H62-3PW |
TLS21H62-3PW
5-V THIN-FILM 2-CHANNEL LOW-NOISE READ/WRITE PREAMPLIFIER
SQHS015 – MAY 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Pin Nomenclature (PW Package)
TERMINAL
NAME
I/O
DESCRIPTION
NO.
CS
16
I
Chip select. High input inhibits the chip and selects idle mode.
GND
1
I
Ground
H0X
2
I/O
X-head connection. Write-head positive differential input.
H0Y
3
I/O
Y-head connection. Write-head negative differential input.
H1X
4
I/O
X-head connection. Write-head positive differential input.
H1Y
5
I/O
Y-head connection. Write-head negative differential input.
HS
11
I
Head select. Selects one of two heads.
NC
6, 7
–
No internal connection
R/W
15
I
Read/write. High-level input selects read mode and a low-level input selects write mode.
RDX, RDY
12, 13
O
Read data. Differential read-data output
VCC
10
I
Supply voltage
WCS
14
I
Write-current set. Used to set the magnitude of the write-current bias. Can be wire ORed when more than
one device is used.
WDI
9
I
Write data input (TTL levels)
WUS/SE
8
I/O
Write unsafe. Indicates write current is zero, mode is read, WDI frequency is low, device is not selected,
head is shorted or open, or low VCC.
Servo enable. When SE = VCC + 1.5 V, the servo-write head is turned on.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
Input voltage range, V
I
: Digital
–0.3 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WUS/SE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, I
O
: RDX, RDY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WUS/SE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Write current, I
W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation, P
d
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
–0.3 V to V
CC
+ 0.3 V
–0.3 V to V
CC
+ 0.3 V
–0.3 V to 8 V
–10 mA
12 mA
65 mA
See Dissipation Rating Table
0
°
C to 70
°
C
–65
°
C to 150
°
C
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
DISSIPATION RATING TABLE
PACKAGE
TA
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
4.90 mW/
°
C
TA = 70
°
C
POWER RATING
PW (16-pin TSSOP)
616 mW
384 mW
P
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