ISP1107
Advanced Universal Serial Bus transceiver
Rev. 01 — 23 February 2000
Objective specification
1. General description
The ISP1107 is a Universal Serial Bus (USB) transceiver that is fully compliant with
the
Universal Serial Bus Specification Rev. 1.1.
It is ideal for portable electronics
devices such as mobile phones, digital still cameras and personal digital assistants. It
allows 1.8 V, 2.5 V and 3.3 V USB Application Specific ICs (ASICs) and
Programmable Logic Devices (PLDs) to interface with the physical layer of the
Universal Serial Bus. It has an integrated 5 V to 3.3 V voltage regulator allowing
direct powering from the USB supply V
BUS
.
The ISP1107 can be used as a USB device transceiver or a USB host transceiver. It
can transmit and receive serial data at both full-speed (12 Mbit/s) and low-speed
(1.5 Mbit/s) data rates. The ISP1107 is compatible with the industry-standard Philips
Semiconductors USB transceiver PDIUSBP11A.
2. Features
s
s
s
s
s
s
s
s
s
s
s
s
s
s
Complies with
Universal Serial Bus Specification Rev. 1.1
Integrated 5 V to 3.3 V voltage regulator allowing direct powering from USB V
BUS
Used as a USB device transceiver or a USB host transceiver
Supports full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s) serial data rates
Slew-rate controlled differential data driver
Differential input receiver with wide common-mode range and very high input
sensitivity
Stable RCV output during SE0 condition
Two single-ended receivers with hysteresis
Low-power operation
Three I/O voltage levels: 1.8 V, 2.5 V and 3.3 V
Backward compatible with PDIUSBP11A
Higher than 8 kV ESD protection
Full industrial operating temperature range
−40
to
+85 °C
Available in small TSSOP16 and BCC16 packages.
c
c
Philips Semiconductors
ISP1107
Advanced USB transceiver
3. Applications
s
Portable electronic devices, such as
x
mobile phones
x
digital still cameras
x
personal digital assistants (PDA)
x
Internet appliances (IA).
4. Ordering information
Table 1:
Ordering information
Package
Name
ISP1107xx
ISP1107DH
[1]
In development.
Type number
Description
plastic bottom chip carrier; 16 terminals; body 3 x 3 x 0.65 mm
plastic thin shrink small outline package; 16 leads; body width 4.4 mm
Version
SOTxxx
SOT403-1
BCC16
[1]
TSSOP16
5. Functional diagram
handbook, full pagewidth
3.3 V
V CC(I/O)
VOLTAGE
REGULATOR
VCC(5.0)
Vreg(3.3)
SOFTCON
OE
Vpu(3.3)
1.5 kΩ
(2)
D+
33
Ω
(1)
(1%)
33
Ω
(1)
(1%)
FSE0
VO
SUSPND
RCV
D−
LEVEL
SHIFTER
VP
VM
ISP1107
MGS962
GND
(1) Use a 39
Ω
resistor (1%) for a USB v2.0 compliant output impedance range.
(2) Connect to D− for low-speed operation.
Fig 1. Functional diagram.
9397 750 06899
© Philips Electronics N.V. 2000. All rights reserved.
Objective specification
Rev. 01 — 23 February 2000
2 of 19
Philips Semiconductors
ISP1107
Advanced USB transceiver
6. Pinning information
6.1 Pinning
fpage
Vpu(3.3) 1
SOFTCON 2
OE 3
RCV 4
16 VCC(5.0)
15 Vreg(3.3)
14 FSE0
13 VO
ISP1107DH
VP 5
VM 6
SUSPND 7
GND 8
MGS961
12 D+
11 D−
10 SPEED
9
V CC(I/O)
Fig 2. Pinning diagram BCC16
(to be added).
Fig 3. Pinning diagram TSSOP16.
6.2 Pin description
Table 2:
Symbol
V
pu(3.3)
Pin description
Pin
1
Type
-
Description
pull-up supply voltage (3.3 V
±
10%); used to connect an
external 1.5 kΩ resistor on D+ (full-speed) or D− (low-speed);
pin function is controlled by input SOFTCON:
SOFTCON = LOW —
V
pu(3.3)
floating (high impedance)
SOFTCON = HIGH —
V
pu(3.3)
= 3.3 V
SOFTCON
2
I
software controlled USB connection input; a HIGH level
applies 3.3 V to pin V
pu(3.3)
, which is connected to an external
1.5 kΩ pull-up resistor; this allows USB connect/disconnect
signalling to be controlled by software
output enable input (CMOS level re. V
CC(I/O)
, active LOW);
enables the transceiver to transmit data on the USB bus
differential data receiver output (CMOS level re. V
CC(I/O)
);
driven LOW when input SUSPND is HIGH; the output state of
RCV is preserved and stable during an SE0 condition
single-ended D+ receiver output (CMOS level re. V
CC(I/O)
);
used for external detection of single-ended zero (SE0), error
conditions, speed of connected device; driven HIGH when
V
CC(5.0)
/V
reg(3.3)
are not connected to any voltage supply
single-ended D− receiver output (CMOS level re. V
CC(I/O)
);
used for external detection of single-ended zero (SE0), error
conditions, speed of connected device; driven HIGH when no
supply voltage is connected to V
CC(5.0)
or V
reg(3.3)
suspend input (CMOS level re. V
CC(I/O)
); a HIGH level enables
low-power state while the USB bus is inactive and drives
output RCV to a LOW level
© Philips Electronics N.V. 2000. All rights reserved.
OE
RCV
3
4
I
O
VP
5
O
VM
6
O
SUSPND
7
I
9397 750 06899
Objective specification
Rev. 01 — 23 February 2000
3 of 19
Philips Semiconductors
ISP1107
Advanced USB transceiver
Pin description
…continued
Pin
8
9
Type
-
-
Description
ground supply
supply voltage for digital I/O pins (1.65 to 3.6 V). Three
voltage levels are supported: 1.8 V
±
0.15 V, 2.5 V
±
0.2 V
and 3.3 V
±
0.3V; when V
CC(I/O)
is not connected, the D+/D−
pins are in three-state
speed selection input (CMOS level re. V
CC(I/O)
); adjusts the
slew rate of differential data outputs D+ and D− according to
the transmission speed:
LOW:
low-speed (1.5 Mbit/s)
HIGH:
full-speed (12 Mbit/s)
Table 2:
Symbol
GND
V
CC(I/O)
SPEED
10
I
D−
D+
VO
FSE0
V
reg(3.3)
11
12
13
14
15
AI/O
AI/O
I
I
-
negative USB data bus connection (analog, differential); for
low-speed mode connect to pin V
pu(3.3)
via a 1.5 kΩ resistor
positive USB data bus connection (analog, differential); for
full-speed mode connect to pin V
pu(3.3)
via a 1.5 kΩ resistor
differential driver data input (CMOS level re. V
CC(I/O)
, Schmitt
trigger); see
Table 4
differential driver data input (CMOS level re. V
CC(I/O)
, Schmitt
trigger); see
Table 4
regulated supply voltage output (3.0 to 3.6 V) during 5 V
operation; used as supply voltage input for 3.3 V operation
(3.3 V
±
10%)
supply voltage for 5 V operation (4.0 to 5.5 V); can be
connected directly to USB supply V
BUS
; connect this pin to
V
reg(3.3)
during 3.3 V operation
V
CC(5.0)
16
-
7. Functional description
7.1 Function selection
Table 3:
SUSPND
L
L
H
H
[1]
[2]
[3]
Function table
OE
L
H
L
H
D+/D−
driving &
receiving
receiving
[1]
driving
high-Z
[1]
RCV
active
active
inactive
[2]
inactive
[2]
VP/VM
active
active
active
active
Function
normal driving
(differential receiver active)
receiving
driving during ‘suspend’
[3]
(differential receiver inactive)
low-power state
Signal levels on D+/D− are determined by other USB devices and external pull-up/down resistors.
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.
During suspend, the slew-rate control circuit of low-speed operation is disabled. The D+/D− are still
driven to their intended states, without slew-rate control. This is permitted because driving during
suspend is used to signal remote wakeup by driving a ‘K’ signal (one transition from idle to ‘K’ state)
for a period of 1 to 15 ms.
9397 750 06899
© Philips Electronics N.V. 2000. All rights reserved.
Objective specification
Rev. 01 — 23 February 2000
4 of 19
Philips Semiconductors
ISP1107
Advanced USB transceiver
7.2 Operating functions
Table 4:
L
L
H
H
Table 5:
Driving function (OE = L)
VO
L
H
L
H
Receiving function (OE = H)
D+/D−
differential logic 0
differential logic 1
SE0
[1]
FSE0
Data
differential logic 0
differential logic 1
SE0
SE0
RCV
L
H
RCV*
[1]
VP
L
H
L
VM
H
L
L
RCV* denotes the signal level on output RCV just before SE0 state occurs. This level is kept stable
during the SE0 period.
7.3 Power supply configurations
The ISP1107 can be used with different power supply configurations, which can be
changed dynamically. An overview is given in
Table 6.
Normal mode —
Both V
CC(I/O)
and V
CC(5.0)
/V
reg(3.3)
are connected. For 5 V
operation, V
CC(5.0)
is connected to a 5 V source (4.0 to 5.5 V). The internal voltage
regulator then produces 3.3 V for the USB connections. For 3.3 V operation, both
V
CC(5.0)
and V
reg(3.3)
are connected to a 3.3 V source (3.0 - 3.6 V). V
CC(I/O)
is
independently connected to a 1.8 V, 2.5 V or 3.3 V source, depending on the supply
voltage of the external circuit.
Disable mode —
V
CC(I/O)
is not connected, V
CC(5.0)
/V
reg(3.3)
are connected. In this
mode, the ISP1107’s internal circuits ensure that the D+/D− pins are in three-state
and the power consumption drops to the low-power (suspended) state level.
Sharing mode —
V
CC(I/O)
is connected, V
CC(5.0)
/V
reg(3.3)
are not connected. In this
mode, the D+/D− pins are made three-state and the ISP1107 allows external signals
of up to 3.6 V to share the D+/D− lines. The ISP1107’s internal circuits ensure that
virtually no current is drawn via the D+/D− lines. The power consumption through pin
V
CC(I/O)
drops to the low-power (suspended) state level. Both the VP and VM pins are
driven HIGH to indicate this mode.
Table 6:
connected
connected
not connected
Power supply configuration overview
V
CC(I/O)
connected
not connected
connected
Configuration
Normal mode
Disable mode
Sharing mode
Special characteristics
-
D+/D− high impedance
D+/D− are high impedance;
VP/VM are driven HIGH
V
CC(5.0)
/V
reg(3.3)
9397 750 06899
© Philips Electronics N.V. 2000. All rights reserved.
Objective specification
Rev. 01 — 23 February 2000
5 of 19
京公网安备 11010802033920号
EEWORLD
