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PDF ISP1109 Data sheet ( Hoja de datos )
| Número de pieza | ISP1109 | |
| Descripción | Universal Serial Bus transceiver with carkit support | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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ISP1109
Universal Serial Bus transceiver with carkit support
Rev. 01 — 14 July 2005
Product data sheet
1. General description
The ISP1109 is a Universal Serial Bus (USB) transceiver device that supports
CEA−936−A, Mini-USB Analog Carkit Interface. It is fully compliant with Universal Serial
Bus Specification Rev. 2.0. The ISP1109 can transmit and receive serial data at full-speed
(12 Mbit/s) and low-speed (1.5 Mbit/s) data rates.
The ISP1109 is available in HVQFN32 package.
2. Features
s Fully complies with Universal Serial Bus Specification Rev. 2.0
s Supports CEA−936−A, Mini-USB Analog Carkit Interface
s Can transmit and receive serial data at full-speed (12 Mbit/s) and low-speed
(1.5 Mbit/s) data rates
s Supports Serial Parallel Interface (SPI) (up to 26 MHz) and I2C-bus (up to 400 kHz)
serial interface to access control and status registers
s Supports Universal Asynchronous Receiver-Transmitter (UART) pass-through on the
DP and DM lines
s Built-in analog switches to support analog audio signals multiplexed on the DP and DM
lines
s Supports On-The-Go (OTG) Session Request Protocol (SRP)
s Supports Power-down mode, in which the whole chip consumes less than 20 µA
power current
s 3.0 V to 5.25 V power supply input range (VCC)
s Supports wide range digital interfacing I/O voltage (VCC(I/O)) of 1.65 V to 3.6 V
s ±12 kV ESD protection at pins DP, DM, ID, VBUS, VCC, GNDA and GNDD
s Supports charger current switching (ISET) detection
s Full industrial grade operation from −40 °C to +85 °C
s Available in a small HVQFN32 (5 x 5 mm2) halogen-free and lead-free package.
3. Applications
s Mobile phones.
1 page  
Philips Semiconductors
ISP1109
USB transceiver with carkit support
6.2 Pin description
Table 2: Pin description
Symbol [1] [2] Pin
Type [3]
SPKR_R
1
AI
SPKR_L
2
AI
VCC
INT_N
3
4
P
OD
RESET_N 5
SPEED
6
I
I
SUSPEND 7
I
VCC(I/O)
SPI_I2C_
SEL
8
9
P
I
SPI_MISO 10
SPI_MOSI/ 11
I2C_SDA
O
I/OD
Reset Description
state
- analog audio input signal for the right speaker
channel
- analog audio input signal for the left speaker
channel
-
high-Z
supply voltage; operates when
3.0 V < VCC < 5.25 V
interrupt output; active LOW; connect to VCC(I/O)
through a 3.3 kΩ resistor
open-drain output
- asynchronous reset input, active LOW
input
- speed selection input for the USB transceiver:
• LOW: USB low-speed
• HIGH: USB full-speed.
when not in use, connect to VCC(I/O) through a
10 kΩ resistor
input
- suspend selection input for the USB transceiver:
• LOW: normal operation
• HIGH: suspend mode.
when not in use, connect to ground through a
10 kΩ resistor
input
- supply voltage for I/O interface logic signals
(1.65 V to 3.6 V)
- selection of SPI or I2C-bus serial interface to
access internal registers:
• LOW: SPI slave interface is selected
• HIGH: I2C-bus slave interface is selected.
The I2C-bus device address is 010 110Xb; here X
is determined by pin 13 (I2C_ADR).
input
- SPI slave data output; leave this pin open when
I2C-bus is selected
push-pull output
high-Z
SPI_MOSI input — SPI slave data input
I2C_SDA input and output — serial I2C-bus data;
when used as an I2C-bus data, the pad is
open-drain; connect to VCC(I/O) through a 3.3 kΩ
resistor.
9397 750 13355
Product data sheet
Rev. 01 — 14 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
5 of 59
5 Page 
Philips Semiconductors
ISP1109
USB transceiver with carkit support
7.7 Audio switches
The audio switches provide low impedance path for analog audio signals to be multiplexed
on the DP and DM lines, or loopback between the MIC and SPKR lines.
There are five analog switches that are controlled by register bits. The impedance of the
switches will be between 50 Ω and 150 Ω. Table 5 shows the relation between the control
bits and the switches. Figure 5 shows the audio switches.
Table 5: Audio switch control
AUDIO_EN
AUDIO_MONO S1
S2
S3
0 X off off off
1 0 on off on
1 1 off on off
S1
SPKR_R
DP SW_MIC_
S2 SPKR_R
MIC
SW_MIC_
SPKR_L
S3
DM SPKR_L
Fig 5. Audio switches.
004aaa518
7.8 ISET detector
The ISET detector will set the ISET pin HIGH when either of the following conditions is
met:
• ID > Vth(ID_FM), VCC > Vth(ISET) and VBUS > Vth(svc)
• DP and DM SE1 detected, VCC > Vth(ISET) and VBUS > Vth(svc).
The DP and DM SE1 detector will time the length of the SE1 condition. The timer value is
programmable using register bit TMR_SE1. The timer ranges from 0 ms to 15 ms, with
1 ms interval.
The ID > Vth(ID_FM) detector, and the SE1 detector (with timer) requires bias current.
In Power-down mode, the bias current is turned off to minimize current ICC. The bias
current needs to be enabled so that the ISET detector can function as described earlier.
• If the Power-down is because VCC(I/O) is disconnected, the bias will be enabled if the
VBUS voltage goes above the SESS_VLD threshold.
9397 750 13355
Product data sheet
Rev. 01 — 14 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
11 of 59
11 Page | ||
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| PDF Descargar | [ Datasheet ISP1109.PDF ] | |
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