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參數(shù)資料
| 型號： | 935267286112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | Buffer和線驅動 |
| 英文描述： | LINE TRANSCEIVER, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT-403-1, TSSOP-16 |
| 文件頁數(shù)： | 22/25頁 |
| 文件大?。?/td> | 594K |
| 代理商： | 935267286112 |
Philips Semiconductors
ISP1105/1106/1107
Advanced USB transceivers
Product data
Rev. 07 — 29 March 2002
6 of 25
9397 750 09529
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
[1]
Symbol names with an overscore (e.g. NAME) indicate active LOW signals.
[2]
Down bonded to the exposed diepad.
7.
Functional description
7.1 Function selection
[1]
Signal levels on (D
+, D) are determined by other USB devices and external pull-up/down resistors.
[2]
In ‘suspend’ mode (SUSPND = HIGH) the differential receiver is inactive and output RCV is always
LOW. Out-of-suspend (‘K’) signalling is detected via the single-ended receivers VP and VM.
[3]
During suspend, the slew-rate control circuit of low-speed operation is disabled. The (D
+, D) lines
are still driven to their intended states, without slew-rate control. This is permitted because driving
during suspend is used to signal remote wake-up by driving a ‘K’ signal (one transition from idle to
‘K’ state) for a period of 1 to 15 ms.
Vreg(3.3)
13
15
-
Internal regulator option: regulated supply voltage output
(3.0 to 3.6 V) during 5 V operation; a decoupling capacitor
of at least 0.1
F is required
Regulator bypass option: used as a supply voltage input
for 3.3 V operation. (3.3 V
±10%)
VCC(5.0)
14
16
-
Internal regulator option: supply voltage input
(4.0 to 5.5 V); can be connected directly to USB supply
VBUS
Regulator bypass option: connect to Vreg(3.3)
Vpu(3.3)
15
1
-
pull-up supply voltage (3.3 V
±10%); connect an external
1.5 k
resistor on D+ (full-speed) or D (low-speed); pin
function is controlled by input SOFTCON:
SOFTCON = LOW — Vpu(3.3) oating (high impedance);
ensures zero pull-up current
SOFTCON = HIGH — Vpu(3.3) = 3.3 V; internally connected
to Vreg(3.3)
SOFTCON
16
2
I
software controlled USB connection input; a HIGH level
applies 3.3 V to pin Vpu(3.3), which is connected to an
external 1.5 k
pull-up resistor; this allows USB
connect/disconnect signalling to be controlled by software
Table 3:
Pin description…continued
Symbol[1]
Pin
Type
Description
ISP1105
HBCC16
ISP1106/7
HBCC16
ISP1106/7
TSSOP16
Table 4:
Function table
SUSPND
OE
(D
+, D)
RCV
VP/VM
Function
L
driving &
receiving
active
normal driving
(differential receiver active)
L
H
active
receiving
H
L
driving
inactive[2]
active
driving during ‘suspend’[3]
(differential receiver inactive)
H
inactive[2]
active
low-power state
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