Philips ISP1102 User Guide

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ISP1102

Advanced Universal Serial Bus transceiver

Rev. 03 — 02 September 2003 Product data

1. General description

The ISP1102 Universal Serial Bus (USB) transceiver is fully compliant with the

Universal Serial Bus Speciﬁcation Rev. 2.0

USB data at full-speed (12 Mbit/s). The transceiver allows USB Application Speciﬁc ICs (ASICs) and Programmable

Logic Devices (PLDs) with power supply voltages from 1.65 to 3.6 V to interface with the physical layer of the USB. The transceiver has an integrated 5 V-to-3.3 V voltage regulator for direct powering via the USB supply line V integrated voltage detector to detect the presence of the V When V protocols.

CC(5.0)

or V

. The ISP1102 can transmit and receive

. The transceiver has an

BUS

voltage (V

BUS

is lost, the D+ and D− pins can be shared with other serial

reg(3.3)

CC(5.0)

2. Features

The transceiver is a bi-directional differential interface and is available in HBCC16 and HVQFN14 packages.

The transceiverisideal for use in portable electronic devices, such as mobile phones, digital still cameras, personal digital assistants and information appliances.

■ Complies with

■ Supports data transfer at full-speed (12 Mbit/s)

■ Integrated 5 V-to-3.3 V voltage regulator for powering via USB line V

■ V

■ VP and VM pins function in bi-directional mode allowing pin count saving for ASIC

■ Used as USB device transceiver or USB host transceiver

■ Stable RCV output during single-ended zero (SE0) condition

■ Two single-ended receivers with hysteresis

■ Low-power operation

■ Supports I/O voltage range from 1.65 to 3.6 V

■ ±12 kV ESD protection (ISP1102W) at D+, D−, V

■ Full industrial operating temperature range from −40 to +85 C

■ Available in HBCC16 and HVQFN14 lead-free and halogen-free packages.

voltage presence indication on pin VBUSDET

BUS

interface

Universal Serial Bus Speciﬁcation Rev. 2.0

and GND pins

CC(5.0)

BUS

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Advanced USB transceiver

3. Applications

■ Portable electronic devices, such as:

◆ Mobile phone

◆ Digital Still Camera (DSC)

◆ Personal Digital Assistant (PDA)

◆ Information Appliance (IA).

4. Ordering information

Table 1: Ordering information

Type number Package

Name Description Version

ISP1102W HBCC16 plastic thermal enhanced bottom chip carrier; 16 terminals;

body 3 × 3 × 0.65 mm

ISP1102BS HVQFN14 plastic thermal enhanced very thin quad ﬂat package; no leads;

14 terminals; body 2.5 × 2.5 × 0.85 mm

ISP1102

SOT639-2

SOT773-1

5. Block diagram

CC(I/O)

VBUSDET SOFTCON

RCV

VP/VPO

VM/VMO

SUSPND

LEVEL

SHIFTER

3.3 V

ISP1102

VOLTAGE

REGULATOR

004aaa207

GND

V V

pu(3.3)

D+ D−

CC(5.0) reg(3.3)

33 Ω

(1%)

1.5 kΩ

Fig 1. Block diagram.

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6. Pinning information

6.1 Pinning

ISP1102

Advanced USB transceiver

SUSPND

1314

pu(3.3)

CC(I/O)

CC(5.0)

VBUSDET

reg(3.3)

D−

D+

n.c.

004aaa208

VM/VMO

VP/VPO

RCV

Bottom view

SUSPND

CC(I/O)

n.c.

ISP1102W

GND (exposed diepad)

141516

pu(3.3)

SOFTCON

VBUSDET

876

CC(5.0)

D−

D+

n.c.

reg(3.3)

004aaa209

VP/VPO

RCV

Bottom view

VM/VMO

ISP1102BS

GND

(exposed diepad)

SOFTCON

Fig 2. Pin conﬁguration HBCC16. Fig 3. Pin conﬁguration HVQFN14.

6.2 Pin description

Table 2: Pin description

Symbol

OE 1 1 I input for output enable (CMOS level with respect to V

RCV 2 2 O differential data receiver output (CMOS level with respect to V

VP/VPO 3 3 I/O single-ended D+ receiver output VP (CMOS levelwith respect to V

VM/VMO 4 4 I/O single-endedD− receiver output VM (CMOS level with respect to V

SUSPND 5 5 I suspend input (CMOS level with respect to V

[1]

Pin Type Description HBCC16 HVQFN14

, active LOW);

CC(I/O)

enables the transceiver to transmit data on the USB bus input pad; push pull; CMOS

driven LOW when input SUSPND is HIGH; the output state of RCV is

CC(I/O)

preserved and stable during an SE0 condition output pad; push pull; 4 mA output drive; CMOS

forexternal detection of SE0, error conditions, speed of connected device; this pin also acts as the drive data input VPO; see Table 3 and Table 4

bidirectional pad; push-pull input; three-state output; 4 mA output drive; CMOS

forexternal detection of SE0, error conditions, speed of connected device; this pin also acts as the drive data input VMO; see Table 3 and Table 4

bidirectional pad; push-pull input; three-state output; 4 mA output drive; CMOS

); a HIGH level enables

CC(I/O)

low-power state while the USB bus is inactive and drives output RCV to a LOW level

input pad; push pull; CMOS

);

CC(I/O)

);

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ISP1102

Advanced USB transceiver

Table 2: Pin description

Symbol

[1]

Pin Type Description

…continued

HBCC16 HVQFN14

n.c. 6 - - not connected V

CC(I/O)

7 6 - supply voltage for digital I/O pins (1.65 to 3.6 V). When V

connected, the D+ and D− pins are in three-state. This supply pin is totally independent of V

CC(5.0)

and V

and must never exceed the V

reg(3.3)

voltage.

VBUSDET 8 7 O V

indicator output (CMOS level with respect to V

BUS

> 4.1 V, then VBUSDET = HIGH and when V

BUS

CC(I/O)

BUS

VBUSDET = LOW; when SUSPND = HIGH, then pin VBUSDET is pulled HIGH

output pad; push pull; 4 mA output drive; CMOS D− 9 8 AI/O negative USB data bus connection (analog, differential) D+ 10 9 AI/O positive USB data bus connection (analog, differential) n.c. 11 - not connected n.c. 12 - not connected n.c. - 10 - not connected V

reg(3.3)

13 11 - 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 µF is required

regulator bypass option: used as a supply voltage input (3.3 V ±10%)

for 3.3 V operation V

CC(5.0)

pu(3.3)

14 12 - internal regulator option: supply voltage input (4.0 to 5.5 V); can be

connected directly to USB line V

regulator bypass option: connect to V

BUS

reg(3.3)

15 13 - pull-up supply voltage (3.3 V ±10%); connect an external 1.5 kΩ resistor

on D+ (full-speed).

Pin function is controlled by input SOFTCON:

is not

CC(I/O)

); when

< 3.6 V, then

reg(3.3)

SOFTCON = LOW — V

ﬂoating (high impedance); ensures zero

pu(3.3)

pull-up current

SOFTCON = HIGH — V

= 3.3 V; internally connected to V

pu(3.3)

reg(3.3)

SOFTCON 16 14 I software controlled USB connection input; a HIGH level applies 3.3 V to

pin V

, which is connected to an external 1.5 kΩ pull-up resistor; this

pu(3.3)

allows USB connect or disconnect signalling to be controlled by software

input pad; push pull; CMOS GND exposed

die pad

[1] Symbol names with an overscore (e.g. OE) indicate active LOW signals.

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exposed die pad

- ground supply; down bonded to the exposed die pad (heatsink); to be connected to the PCB ground

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7. Functional description

7.1 Function selection

Table 3: Function table

SUSPND OE D+, D− RCV VP/VPO VM/VMO Function

L L driving/

L H receiving H L driving inactive

H H high-Z

[1] Signal levels on the D+ and D− pins are determined by other USB devices and external pull-up or

pull-down resistors.

[2] In the suspend mode (SUSPND = HIGH), the differential receiver is inactive and the output RCV is

always LOW. Out-of-suspend (K) signalling is detected via the single-ended receivers VP/VPO and VM/VMO.

receiving

[1]

Advanced USB transceiver

active VPO input VMO input normal driving

(differential receiver active)

[1]

active VP output VM output receiving

[2]

VPO input VMO input driving during suspend

(differential receiver inactive)

inactive

[2]

VP output VM output low-power state

ISP1102

7.2 Operating functions

Table 4: Driving function using differential input data interface (pin OE=L)

VM/VMO VP/VPO Data

L L SE0 L H differential logic 1 H L differential logic 0 H H illegal state

Table 5: Receiving function (pin

D+, D− RCV VP/VPO VM/VMO

differential logic 0 L L H differential logic 1 H H L SE0 RCV*

[1] RCV* denotes the signal level on output RCV just before the SE0 state occurs. This level is stable

during the SE0 period.

OE=H)

[1]

7.3 Power supply conﬁgurations

The ISP1102 can be used with different power supply conﬁgurations, which can be changed dynamically. Table 7 provides an overview of the power supply conﬁgurations.

Normal mode — V V

are connected.

reg(3.3)

For 5 V operation, V

is connected. V

CC(I/O)

is connected to a 5 V source (4.0 to 5.5 V). The internal

CC(5.0)

is connected only, or V

CC(5.0)

and

voltage regulator then produces 3.3 V for the USB connections.

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ISP1102

Advanced USB transceiver

For 3.3 V operation, both V

CC(5.0)

and V

are connected to a 3.3 V source

reg(3.3)

(3.0 to 3.6 V). V

is independently connected to a voltage source (1.65 to 3.6 V), depending on

CC(I/O)

the supply voltage of the external circuit. Sharing mode — V

is connected only; V

CC(I/O)

CC(5.0)

and V

are not connected.

reg(3.3)

In this mode, the D+ and D− pins are made three-state and the ISP1102 allows external signals of up to 3.6 V to share the D+ and D− lines. The internal circuits of the ISP1102 ensure that virtually no current (maximum 10 µA) is drawn via the D+ and D− lines. The power consumption through pin V

drops to the low-power

CC(I/O)

(suspended) state level. Pins VBUSDET and RCV are driven LOW to indicate this mode. The VBUSDET

function is ignored during the suspend mode of the ISP1102. Some hysteresis is built into the detection of V

Table 6: Pin states in the sharing mode

Pin Sharing mode

CC(5.0)

reg(3.3)

CC(I/O)

pu(3.3)

D+, D− high impedance VP/VPO, VM/VMO

[1]

RCV L VBUSDET L OE, SUSPND, SOFTCON high impedance

not present not present

1.65 to 3.6 V input high impedance (off)

reg(3.3)

lost.

[1] VP/VPO and VM/VMO are bidirectional pins.

Table 7: Power supply conﬁguration overview

CC(5.0)

Conﬁguration Special characteristics

connected normal mode not connected sharing mode D+, D− and V

VBUSDET driven LOW

high impedance;

pu(3.3)

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7.4 Power supply input options

The ISP1102 has two power supply input options.

ISP1102

Advanced USB transceiver

Internal regulator — pin V

is used to supply the internal circuitry with 3.3 V (nominal). The V

is connected to 4.0 to 5.5 V. The internal regulator

CC(5.0)

reg(3.3)

pin becomes

a 3.3 V output reference. Regulator bypass — pins V

CC(5.0)

and V

are connected to the same supply.

reg(3.3)

The internal regulator is bypassed and the internal circuitry is supplied directly from pin V

. The voltage range is 3.0 to 3.6 V to comply with the USB speciﬁcation.

reg(3.3)

The supply voltage range for each input option is speciﬁed in Table 8.

Table 8: Power supply input options

Input option V

Internal regulator

Regulator bypass

CC(5.0)

supply input for internal regulator (4.0 to 5.5 V)

connected to V with maximum voltage drop of 0.3 V (2.7 to 3.6 V)

reg(3.3)

voltage reference output (3.3 V, 300 µA)

supply input (3.0 V to 3.6 V)

CC(I/O)

supply input for digital I/O pins (1.65 V to 3.6 V)

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